Virtual Journal of Quantum Information -- April 2012

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ALGORITHMS AND COMPUTATION

Coherent cavity networks with complete connectivity
Elica Kyoseva, Almut Beige, and Leong Kwek
New Journal of Physics   14, 023023 (2012)   
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Stability of the k=3 ReadRezayi state in chiral two-dimensional systems with tunable interactions
D Abanin, Z Papi, Y Barlas, and R Bhatt
New Journal of Physics   14, 025009 (2012)   
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Experimental simulation and limitations of quantum walks with trapped ions
R Matjeschk, Ch Schneider, M Enderlein, T Huber, H Schmitz, J Glueckert, and T Schaetz
New Journal of Physics   14, 035012 (2012)   
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Relativistic quantum chemistry on quantum computers
Libor Veis, Jakub Višňák, Timo Fleig, Stefan Knecht, Trond Saue, Lucas Visscher, and Jiří Pittner
Physical Review A   85, 030304 (2012) (5 pages)   
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Universal two-body-Hamiltonian quantum computing
Daniel Nagaj
Physical Review A   85, 032330 (2012) (5 pages)   
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Computational power and correlation in a quantum computational tensor network
Keisuke Fujii and Tomoyuki Morimae
Physical Review A   85, 032338 (2012) (9 pages)   
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Implementing Quantum Gates by Optimal Control with Doubly Exponential Convergence
Pierre de Fouquieres
Physical Review Letters   108, 110504 (2012) (5 pages)   
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Quantum Factorization of 143 on a Dipolar-Coupling Nuclear Magnetic Resonance System
Nanyang Xu, Jing Zhu, Dawei Lu, Xianyi Zhou, Xinhua Peng, and Jiangfeng Du
Physical Review Letters   108, 130501 (2012) (5 pages)   
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Parallel Information Transfer in a Multinode Quantum Information Processor
T. W. Borneman, C. E. Granade, and D. G. Cory
Physical Review Letters   108, 140502 (2012) (5 pages)   
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Memory cost of quantum protocols
Alessandro Bisio, Giacomo Mauro D'Ariano, Paolo Perinotti, and Michal Sedlák
Physical Review A   85, 032333 (2012) (8 pages)   
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Using quantum state protection via dissipation in a quantum-dot molecule to solve the Deutsch problem
M. M. Santos, F. O. Prado, H. S. Borges, A. M. Alcalde, J. M. Villas-Bôas, and E. I. Duzzioni
Physical Review A   85, 032323 (2012) (6 pages)   
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Experimental demonstration of quantum gain in a zero-sum game
C Zu, Y-X Wang, X-Y Chang, Z-H Wei, S-Y Zhang, and L-M Duan
New Journal of Physics   14, 33002- (2012)   
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Extracting Dynamical Equations from Experimental Data is NP Hard
Toby S. Cubitt, Jens Eisert, and Michael M. Wolf
Physical Review Letters   108, 120503 (2012) (5 pages)   
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A 2D Quantum Walk Simulation of Two-Particle Dynamics
Andreas Schreiber, Aurl Gbris, Peter P. Rohde, Kaisa Laiho, Martin Štefaňk, Vclav Potoek, Craig Hamilton, Igor Jex, and Christine Silberhorn
Science   336, 55-58 (2012)   
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Quantum limits for the magnetic sensitivity of a chemical compass
Jianming Cai, Filippo Caruso, and Martin B. Plenio
Physical Review A   85, 040304 (2012) (5 pages)   
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CRYPTOGRAPHY

A quantum relay chip based on telecommunication integrated optics technology
A Martin, O Alibart, M De Micheli, D Ostrowsky, and S Tanzilli
New Journal of Physics   14, 25002- (2012)   
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Side-Channel-Free Quantum Key Distribution
Samuel L. Braunstein and Stefano Pirandola
Physical Review Letters   108, 130502 (2012) (4 pages)   
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2 GHz clock quantum key distribution over 260 km of standard telecom fiber
Shuang Wang, Wei Chen, Jun-Fu Guo, Zhen-Qiang Yin, Hong-Wei Li, Zheng Zhou, Guang-Can Guo, and Zheng-Fu Han
Optics Letters   37, 1008-1010 (2012)   
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Information communicated by entangled photon pairs
Thomas Brougham and Stephen M. Barnett
Physical Review A   85, 032322- (2012)   
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Measurement-Device-Independent Quantum Key Distribution
Hoi-Kwong Lo, Marcos Curty, and Bing Qi
Physical Review Letters   108, 130503 (2012) (5 pages)   
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Quantum anonymous voting for continuous variables
Lang Jiang, Guangqiang He, Ding Nie, Jin Xiong, and Guihua Zeng
Physical Review A   85, 042309 (2012) (6 pages)   
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Phase encoding schemes for measurement-device-independent quantum key distribution with basis-dependent flaw
Kiyoshi Tamaki, Hoi-Kwong Lo, Chi-Hang Fred Fung, and Bing Qi
Physical Review A   85, 042307- (2012)   
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Implementation of two-way free space quantum key distribution
Mohd Fared bin Abdul Khir, Mohd Norzaliman Mohd Zain, Suryadi Soekardjo, Suhairi Saharudin, and Sahbudin Shaari
Optical Engineering   51, 045006 (2012) (7 pages)   
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A novel, robust quantum detection scheme
B Hemmerling, F Gebert, Y Wan, and P Schmidt
New Journal of Physics   14, 23043- (2012)   
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ENTANGLEMENT

Topological superfluid in one-dimensional spin-orbit-coupled atomic Fermi gases
Xia-Ji Liu and Hui Hu
Physical Review A   85, 033622 (2012) (7 pages)   
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Bose-Hubbard model in a strong effective magnetic field: Emergence of a chiral Mott insulator ground state
Arya Dhar, Maheswar Maji, Tapan Mishra, R. V. Pai, Subroto Mukerjee, and Arun Paramekanti
Physical Review A   85, 041602 (2012) (4 pages)   
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Topological superconductivity and Majorana fermions in metallic surface states
Andrew C. Potter and Patrick A. Lee
Physical Review B   85, 094516- (2012)   
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Mixed-state quantum transport in correlated spin networks
Ashok Ajoy and Paola Cappellaro
Physical Review A   85, 042305 (2012) (10 pages)   
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Direct naked-eye detection of chiral and Faraday effects in white light
G. Ropars, A. Le Floch, J. Enoch, and V. Lakshminarayanan
Europhysics Letters   97, 64002- (2012)   
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Universal logarithmic terms in the entanglement entropy of 2d, 3d and 4d random transverse-field Ising models
I. Kovcs and F. Igli
Europhysics Letters   97, 67009- (2012)   
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Towards a state minimizing the output entropy of a tensor product of random quantum channels
Benoît Collins, Motohisa Fukuda, and Ion Nechita
Journal of Mathematical Physics   53, 032203 (2012) (20 pages)   
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Noise-induced quantum correlations via quantum feedback control
Jie Song, Yan Xia, and Xiu-Dong Sun
Journal of the Optical Society of America B   29, 268-273 (2012)   
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Macroscopic thermal entanglement in a spin chain caused by the magnetic field: Inhomogeneity effect
A. A. Zvyagin
Low Temperature Physics   38, 210-215 (2012)   
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Observation of eight-photon entanglement
Xing-Can Yao, Tian-Xiong Wang, Ping Xu, He Lu, Ge-Sheng Pan, Xiao-Hui Bao, Cheng-Zhi Peng, Chao-Yang Lu, Yu-Ao Chen, and Jian-Wei Pan
Nature Photonics   6, 225- (2012)   
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Heralded quantum entanglement between two crystals
Imam Usmani, Christoph Clausen, Flix Bussires, Nicolas Sangouard, Mikael Afzelius, and Nicolas Gisin
Nature Photonics   6, 234- (2012)   
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An elementary quantum network of single atoms in optical cavities
Stephan Ritter, Christian Nlleke, Carolin Hahn, Andreas Reiserer, Andreas Neuzner, Manuel Uphoff, Martin Mcke, Eden Figueroa, Joerg Bochmann, and Gerhard Rempe
Nature   484, 195- (2012)   
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Experimental characterization of photonic fusion using fiber sources
B Bell, A Clark, M Tame, M Halder, J Fulconis, W Wadsworth, and J Rarity
New Journal of Physics   14, 23021- (2012)   
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Falsification of Leggett's model using neutron matter waves
Yuji Hasegawa, Claus Schmitzer, Hannes Bartosik, Jrgen Klepp, Stephan Sponar, Katharina Durstberger-Rennhofer, and Gerald Badurek
New Journal of Physics   14, 023039 (2012)   
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Quantum entanglement distribution using a magnetic field sensor
M Schaffry, S Benjamin, and Y Matsuzaki
New Journal of Physics   14, 023046 (2012)   
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Optimal linear optical implementation of a single-qubit damping channel
Kent Fisher, Robert Prevedel, Rainer Kaltenbaek, and Kevin Resch
New Journal of Physics   14, 033016 (2012)   
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Beyond pure state entanglement for atomic ensembles
Julia Stasiska, Simone Paganelli, and Anna Sanpera
New Journal of Physics   14, 033034 (2012)   
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Experimental realization of a four-photon seven-qubit graph state for one-way quantum computation
Sang Min Lee, Hee Su Park, Jaeyoon Cho, Yoonshik Kang, Jae Yong Lee, Heonoh Kim, Dong-Hoon Lee, and Sang-Kyung Choi
Optics Express   20, 6915-6926 (2012)   
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Passive optical switching of photon pairs using a spontaneous parametric fiber loop
Ningbo Zhao, Lei Yang, and Xiaoying Li
Optics Letters   37, 1220-1222 (2012)   
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Dynamics of Gaussian discord between two oscillators interacting with a common environment
José Nahuel Freitas and Juan Pablo Paz
Physical Review A   85, 032118 (2012) (9 pages)   
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Bilocal versus nonbilocal correlations in entanglement-swapping experiments
Cyril Branciard, Denis Rosset, Nicolas Gisin, and Stefano Pironio
Physical Review A   85, 032119 (2012) (21 pages)   
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Experimental analysis of the quantum complementarity principle
R. Auccaise, R. M. Serra, J. G. Filgueiras, R. S. Sarthour, I. S. Oliveira, and L. C. Céleri
Physical Review A   85, 032121- (2012)   
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Revival of quantum correlations without system-environment back-action
R. Lo Franco, B. Bellomo, E. Andersson, and G. Compagno
Physical Review A   85, 032318- (2012)   
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Multipartite entanglement generation assisted by inhomogeneous coupling
C. E. López, F. Lastra, G. Romero, E. Solano, and J. C. Retamal
Physical Review A   85, 032319 (2012) (6 pages)   
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Scalable continuous-variable entanglement of optical fields via concurrent interactions with separated atomic ensembles
Hong Sun and Xiangming Hu
Physical Review A   85, 032320 (2012) (10 pages)   
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Superoperator analysis of entanglement in a four-qubit cluster state
Yaakov S. Weinstein, Jay Feldman, Jacob Robins, Jason Zukus, and Gerald Gilbert
Physical Review A   85, 032324 (2012) (9 pages)   
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Measurement-induced two-qubit entanglement in a bad cavity: Fundamental and practical considerations
Brian Julsgaard and Klaus Mølmer
Physical Review A   85, 032327 (2012) (12 pages)   
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Directed percolation effects emerging from superadditivity of quantum networks
L. Czekaj, R. W. Chhajlany, and P. Horodecki
Physical Review A   85, 032328 (2012) (5 pages)   
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Creating multimode squeezed states and Greenberger-Horne-Zeilinger entangled states using atomic coherent effects
Xiao Liang, Xiangming Hu, and Chang He
Physical Review A   85, 032329 (2012) (8 pages)   
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Polarization-based entanglement swapping at the telecommunication wavelength using spontaneous parametric down-conversion photon-pair sources
Yinghong Xue, Akio Yoshizawa, and Hidemi Tsuchida
Physical Review A   85, 032337 (2012) (7 pages)   
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Nonentangling channels for multiple collisions of quantum wave packets
Walter Hahn and Boris V. Fine
Physical Review A   85, 032713- (2012)   
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Discrete symmetry breaking transitions between paired superfluids
M. J. Bhaseen, S. Ejima, F. H. L. Essler, H. Fehske, M. Hohenadler, and B. D. Simons
Physical Review A   85, 033636 (2012) (16 pages)   
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Creation of two vortex-entangled beams in a vortex-beam collision with a plane wave
Igor P. Ivanov
Physical Review A   85, 033813 (2012) (4 pages)   
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Continuous-mode effects and photon-photon phase gate performance
Bing He and Artur Scherer
Physical Review A   85, 033814 (2012) (5 pages)   
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Bosonic, fermionic, and anyonic symmetry in two-photon random scattering
M. P. van Exter, J. Woudenberg, H. Di Lorenzo Pires, and W. H. Peeters
Physical Review A   85, 033823 (2012) (5 pages)   
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Fast generation of many-atom maximal entanglement in spin-1 Bose-Einstein condensates
GuangSi Meng, HuiMing Xu, Song Yang, ShengLi Zhang, GuangCan Guo, BaoSen Shi, and XuBo Zou
Physical Review A   85, 035601 (2012) (4 pages)   
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Quantumness of correlations revealed in local measurements exceeds entanglement
Marco Piani and Gerardo Adesso
Physical Review A   85, 040301 (2012) (5 pages)   
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Correlations in excited states of local Hamiltonians
Jianxin Chen, Zhengfeng Ji, Zhaohui Wei, and Bei Zeng
Physical Review A   85, 040303 (2012) (4 pages)   
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Unification of different views of decoherence and discord
Patrick J. Coles
Physical Review A   85, 042103 (2012) (14 pages)   
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Entanglement and the interplay between staggered fields and couplings
Jenny Hide, Yoshifumi Nakata, and Mio Murao
Physical Review A   85, 042303 (2012) (10 pages)   
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Dissipative preparation of entangled states between two spatially separated nitrogen-vacancy centers
Peng-Bo Li, Shao-Yan Gao, Hong-Rong Li, Sheng-Li Ma, and Fu-Li Li
Physical Review A   85, 042306 (2012) (7 pages)   
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Engineering steady three-atom singlet states via quantum-jump-based feedback
Xiao-Qiang Shao, Tai-Yu Zheng, and Shou Zhang
Physical Review A   85, 042308 (2012) (4 pages)   
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Tuning entanglement and ergodicity in two-dimensional spin systems using impurities and anisotropy
Gehad Sadiek, Qing Xu, and Sabre Kais
Physical Review A   85, 042313 (2012) (21 pages)   
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Classification of multipartite entanglement via negativity fonts
S. Shelly Sharma and N. K. Sharma
Physical Review A   85, 042315 (2012) (4 pages)   
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Tavis-Cummings model beyond the rotating wave approximation: Quasidegenerate qubits
S. Agarwal, S. M. Hashemi Rafsanjani, and J. H. Eberly
Physical Review A   85, 043815 (2012) (11 pages)   
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Quantum phase transition in the Dicke model with critical and noncritical entanglement
L. Bakemeier, A. Alvermann, and H. Fehske
Physical Review A   85, 043821 (2012) (9 pages)   
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Real-space entanglement spectrum of quantum Hall systems
J. Dubail, N. Read, and E. H. Rezayi
Physical Review B   85, 115321 (2012) (5 pages)   
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Correlation length and unusual corrections to entanglement entropy
Elisa Ercolessi, Stefano Evangelisti, Fabio Franchini, and Francesco Ravanini
Physical Review B   85, 115428 (2012) (10 pages)   
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Kondo resonance of a microwave photon
Karyn Le Hur
Physical Review B   85, 140506 (2012) (4 pages)   
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Quantized response and topology of magnetic insulators with inversion symmetry
Ari M. Turner, Yi Zhang, Roger S. K. Mong, and Ashvin Vishwanath
Physical Review B   85, 165120 (2012) (26 pages)   
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Theta vacuum and entanglement interaction in the three-flavor Polyakov-loop extended Nambu-Jona-Lasinio model
Takahiro Sasaki, Junichi Takahashi, Yuji Sakai, Hiroaki Kouno, and Masanobu Yahiro
Physical Review D   85, 056009 (2012) (9 pages)   
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Scattering in an environment
Janos Polonyi and Karima Zazoua
Physical Review D   85, 065013 (2012) (18 pages)   
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Shape evolution of a core-shell spherical particle under hydrostatic pressure
Jérôme Colin
Physical Review E   85, 032601 (2012) (5 pages)   
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Classical dynamics of quantum entanglement
Giulio Casati, Italo Guarneri, and Jose Reslen
Physical Review E   85, 036208 (2012) (5 pages)   
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Entanglement Entropy of Highly Degenerate States and Fractal Dimensions
Olalla A. Castro-Alvaredo and Benjamin Doyon
Physical Review Letters   108, 120401 (2012) (5 pages)   
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Entangled and Sequential Quantum Protocols with Dephasing
Sergio Boixo and Chris Heunen
Physical Review Letters   108, 120402 (2012) (5 pages)   
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Proposal for Inverting the Quantum Cloning of Photons
Sadegh Raeisi, Wolfgang Tittel, and Christoph Simon
Physical Review Letters   108, 120404 (2012) (5 pages)   
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Generation of Mesoscopic Entangled States in a Cavity Coupled to an Atomic Ensemble
G. Nikoghosyan, M. J. Hartmann, and M. B. Plenio
Physical Review Letters   108, 123603 (2012) (5 pages)   
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Nonlinear Plasmon-Photon Interaction Resolved by k-Space Spectroscopy
Nicolai B. Grosse, Jan Heckmann, and Ulrike Woggon
Physical Review Letters   108, 136802 (2012) (5 pages)   
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Information Trade-Offs for Optical Quantum Communication
Mark M. Wilde, Patrick Hayden, and Saikat Guha
Physical Review Letters   108, 140501- (2012)   
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Quantum Interference of Single Photons from Remote Nitrogen-Vacancy Centers in Diamond
A. Sipahigil, M. L. Goldman, E. Togan, Y. Chu, M. Markham, D. J. Twitchen, A. S. Zibrov, A. Kubanek, and M. D. Lukin
Physical Review Letters   108, 143601 (2012) (5 pages)   
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Quantum Mutual Information Capacity for High-Dimensional Entangled States
P. Ben Dixon, Gregory A. Howland, James Schneeloch, and John C. Howell
Physical Review Letters   108, 143603 (2012) (5 pages)   
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Is a System's Wave Function in One-to-One Correspondence with Its Elements of Reality?
Roger Colbeck and Renato Renner
Physical Review Letters   108, 150402 (2012) (4 pages)   
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Observable Measure of Bipartite Quantum Correlations
Davide Girolami and Gerardo Adesso
Physical Review Letters   108, 150403 (2012) (6 pages)   
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Two-Photon Path-Entangled States in Multimode Waveguides
Eilon Poem, Yehonatan Gilead, and Yaron Silberberg
Physical Review Letters   108, 153602 (2012) (5 pages)   
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Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
M. D. Shulman, O. E. Dial, S. P. Harvey, H. Bluhm, V. Umansky, and A. Yacoby
Science   336, 202-205 (2012)   
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Controlled-X gate with cache function for one-way quantum computation
Heng Shen, Kenan Qu, Weigang Zhang, and Jing Jin
Physical Review A   85, 032317 (2012) (5 pages)   
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Entanglement scaling in two-dimensional gapless systems
Hyejin Ju, Ann B. Kallin, Paul Fendley, Matthew B. Hastings, and Roger G. Melko
Physical Review B   85, 165121 (2012) (5 pages)   
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Localized quadripartite entanglement
Shao-xiong Wu and Chang-shui Yu
Physical Review A   85, 032332 (2012) (4 pages)   
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Unification of multiqubit polygamy inequalities
Jeong San Kim
Physical Review A   85, 032335 (2012) (7 pages)   
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Realization of a general quantum cloning machine via cavity-assisted interaction
B.-L. Fang, T. Wu, and L. Ye
Europhysics Letters   97, 60002- (2012)   
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Photon-subtracted squeezed coherent state: nonclassicality and decoherence in thermal environment
Zhen Wang, Xiang-guo Meng, and Hong-yi Fan
Journal of the Optical Society of America B   29, 397- (2012)   
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Experimental studies in generation of high-purity photon-pairs using cascaded ⁽²⁾ processes in a periodically poled LiNbO₃ ridge-waveguide device
Shin Arahira, Naoto Namekata, Tadashi Kishimoto, and Shuichiro Inoue
Journal of the Optical Society of America B   29, 434-442 (2012)   
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Quantum teleportation using non-orthogonal entangled channels
Satyabrata Adhikari, A Majumdar, Dipankar Home, A Pan, and P Joshi
Physica Scripta   85, 45001- (2012)   
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Resonant cascaded down-conversion
Christian Weedbrook, Ben Perrett, Karen V. Kheruntsyan, Peter D. Drummond, Raphael C. Pooser, and Olivier Pfister
Physical Review A   85, 033821 (2012) (15 pages)   
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General hidden-variable model for a two-qubit system
GianCarlo Ghirardi and Raffaele Romano
Physical Review A   85, 042102 (2012) (4 pages)   
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Scalable one-way quantum computer using on-chip resonator qubits
Chun-Wang Wu, Ming Gao, Hong-Yi Li, Zhi-Jiao Deng, Hong-Yi Dai, Ping-Xing Chen, and Cheng-Zu Li
Physical Review A   85, 042301 (2012) (6 pages)   
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Quantum correlations in continuous-time quantum walks of two indistinguishable particles
Claudia Benedetti, Fabrizio Buscemi, and Paolo Bordone
Physical Review A   85, 042314 (2012) (9 pages)   
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Collapse-revival dynamics and atom-field entanglement in the nonresonant Dicke model
A. Alvermann, L. Bakemeier, and H. Fehske
Physical Review A   85, 043803 (2012) (8 pages)   
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Second-order superposition operations via Hong-Ou-Mandel interference
Su-Yong Lee and Hyunchul Nha
Physical Review A   85, 043816 (2012) (5 pages)   
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Production of entanglement with highly mixed states
Minsu Kang, M. S. Kim, and Hyunseok Jeong
Physical Review A   85, 044301 (2012) (4 pages)   
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Vibrational spectra and tripartite entanglement in hydrogen sulfide
Xi-Wen Hou, Jun Huang, and Ming-Fang Wan
Physical Review A   85, 044501 (2012) (3 pages)   
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First-principles investigation of hyperfine interactions for nuclear spin entanglement in photoexcited fullerenes
Vasileia Filidou, Davide Ceresoli, John J. L. Morton, and Feliciano Giustino
Physical Review B   85, 115430 (2012) (7 pages)   
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Three-sublattice order in the SU(3) Heisenberg model on the square and triangular lattice
Bela Bauer, Philippe Corboz, Andreas M. Läuchli, Laura Messio, Karlo Penc, Matthias Troyer, and Frédéric Mila
Physical Review B   85, 125116 (2012) (11 pages)   
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Real-space entanglement spectrum of quantum Hall states
A. Sterdyniak, A. Chandran, N. Regnault, B. A. Bernevig, and Parsa Bonderson
Physical Review B   85, 125308- (2012)   
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Deterministic preparation of Dicke states of donor nuclear spins in silicon by cooperative pumping
Yu Luo, Hongyi Yu, and Wang Yao
Physical Review B   85, 155304 (2012) (6 pages)   
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Critical properties and Rényi entropies of the spin- XXZ chain
M. Dalmonte, E. Ercolessi, and L. Taddia
Physical Review B   85, 165112 (2012) (7 pages)   
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Decomposition of entanglement entropy in lattice gauge theory
William Donnelly
Physical Review D   85, 085004- (2012)   
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Two-Mode Correlation of Microwave Quantum Noise Generated by Parametric Down-Conversion
N. Bergeal, F. Schackert, L. Frunzio, and M. H. Devoret
Physical Review Letters   108, 123902 (2012) (5 pages)   
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Monolithic Source of Photon Pairs
Rolf Horn, Payam Abolghasem, Bhavin J. Bijlani, Dongpeng Kang, A. S. Helmy, and Gregor Weihs
Physical Review Letters   108, 153605 (2012) (5 pages)   
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Resonant energy transfer assisted by off-diagonal coupling
Ning Wu, Ke-Wei Sun, Zhe Chang, and Yang Zhao
The Journal of Chemical Physics   136, 124513 (2012) (6 pages)   
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Information gap for classical and quantum communication in a Schwarzschild spacetime
Dominic Hosler, Carsten van de Bruck, and Pieter Kok
Physical Review A   85, 042312 (2012) (5 pages)   
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Spin-nematic squeezed vacuum in a quantum gas
C. D. Hamley, C. S. Gerving, T. M. Hoang, E. M. Bookjans, and M. S. Chapman
Nature Physics   8, 305-308 (2012)   
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Spectral properties of high-gain parametric down-conversion
K. Yu. Spasibko, T. Sh. Iskhakov, and M. V. Chekhova
Optics Express   20, 7507-7515 (2012)   
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ERROR CORRECTION

Dynamical Recurrence and the Quantum Control of Coupled Oscillators
Marco G. Genoni, Alessio Serafini, M. S. Kim, and Daniel Burgarth
Physical Review Letters   108, 150501 (2012) (5 pages)   
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Decoherence-protected quantum gates for a hybrid solid-state spin register
T. van der Sar, Z. H. Wang, M. S. Blok, H. Bernien, T. H. Taminiau, D. M. Toyli, D. A. Lidar, D. D. Awschalom, R. Hanson, and V. V. Dobrovitski
Nature   484, 82- (2012)   
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Robust trapped-ion quantum logic gates by continuous dynamical decoupling
A. Bermudez, P. O. Schmidt, M. B. Plenio, and A. Retzker
Physical Review A   85, 040302 (2012) (5 pages)   
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Reducing decoherence in optical and spin transitions in rare-earth-metal-ion–doped materials
D. L. McAuslan, J. G. Bartholomew, M. J. Sellars, and J. J. Longdell
Physical Review A   85, 032339 (2012) (9 pages)   
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Feshbach projection-operator partitioning for quantum open systems: Stochastic approach
Jun Jing, Lian-Ao Wu, J. Q. You, and Ting Yu
Physical Review A   85, 032123 (2012) (5 pages)   
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Optimal control for non-Markovian open quantum systems
Bin Hwang and Hsi-Sheng Goan
Physical Review A   85, 032321 (2012) (7 pages)   
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Universality of the Heisenberg limit for estimates of random phase shifts
Michael J. W. Hall, Dominic W. Berry, Marcin Zwierz, and Howard M. Wiseman
Physical Review A   85, 041802 (2012) (4 pages)   
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Adiabatic manipulations of Majorana fermions in a three-dimensional network of quantum wires
Bertrand I. Halperin, Yuval Oreg, Ady Stern, Gil Refael, Jason Alicea, and Felix von Oppen
Physical Review B   85, 144501- (2012)   
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Characterizing quantum gates via randomized benchmarking
Easwar Magesan, Jay M. Gambetta, and Joseph Emerson
Physical Review A   85, 042311 (2012) (16 pages)   
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Fidelity of a Rydberg-blockade quantum gate from simulated quantum process tomography
X. L. Zhang, A. T. Gill, L. Isenhower, T. G. Walker, and M. Saffman
Physical Review A   85, 042310 (2012) (14 pages)   
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Comparison of dynamical decoupling protocols for a nitrogen-vacancy center in diamond
Zhi-Hui Wang, G. de Lange, D. Ristè, R. Hanson, and V. V. Dobrovitski
Physical Review B   85, 155204- (2012)   
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INFORMATION THEORY

Heisenberg-style bounds for arbitrary estimates of shift parameters including prior information
Michael Hall and Howard Wiseman
New Journal of Physics   14, 33040- (2012)   
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Structure of Reversible Computation Determines the Self-Duality of Quantum Theory
Markus P. Müller and Cozmin Ududec
Physical Review Letters   108, 130401- (2012)   
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Measuring geometric quantum discord using one bit of quantum information
G. Passante, O. Moussa, and R. Laflamme
Physical Review A   85, 032325 (2012) (5 pages)   
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Synthesis of arbitrary SU(3) transformations of atomic qutrits
Nikolay V. Vitanov
Physical Review A   85, 032331- (2012)   
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Macroscopic quantum tunneling in quartic and sextic potentials: Application to a phase qubit
N. Didier and F. W. J. Hekking
Physical Review B   85, 104522 (2012) (8 pages)   
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Discord and Nonclassicality in Probabilistic Theories
Paolo Perinotti
Physical Review Letters   108, 120502 (2012) (5 pages)   
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Cavity approach to variational quantum mechanics
A. Ramezanpour
Physical Review B   85, 125131 (2012) (7 pages)   
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Short-time quantum detection: Probing quantum fluctuations
Marco del Rey, Carlos Sabín, and Juan León
Physical Review A   85, 045802 (2012) (4 pages)   
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Efficient two-step entanglement concentration for arbitrary W states
Yu-Bo Sheng, Lan Zhou, and Sheng-Mei Zhao
Physical Review A   85, 042302 (2012) (9 pages)   
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Generalized toric codes coupled to thermal baths
O Viyuela, A Rivas, and M Martin-Delgado
New Journal of Physics   14, 33044- (2012)   
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Stochastic wave-function unravelling of the generalized Lindblad equation using correlated states
Mervlyn Moodley, S Paul, and T Nsio Nzundu
Physica Scripta   85, 45002- (2012)   
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Critical assessment of two-qubit post-Markovian master equations
S. Campbell, A. Smirne, L. Mazzola, N. Lo Gullo, B. Vacchini, Th. Busch, and M. Paternostro
Physical Review A   85, 032120 (2012) (6 pages)   
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Measuring Trⁿ on Single Copies of Using Random Measurements
S. J. van Enk and C. W. J. Beenakker
Physical Review Letters   108, 110503 (2012) (5 pages)   
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Physical interpretation of the Wigner rotations and its implications for relativistic quantum information
Pablo Saldanha and Vlatko Vedral
New Journal of Physics   14, 23041- (2012)   
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IMPLEMENTATIONS

Implementation of a three-qubit Toffoli gate in a single step
Ai Min Chen, Sam Young Cho, and Mun Dae Kim
Physical Review A   85, 032326- (2012)   
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Possible use of a Cooper-pair box for low-dose electron microscopy
Hiroshi Okamoto
Physical Review A   85, 043810 (2012) (13 pages)   
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Majorization Theory Approach to the Gaussian Channel Minimum Entropy Conjecture
Raúl García-Patrón, Carlos Navarrete-Benlloch, Seth Lloyd, Jeffrey H. Shapiro, and Nicolas J. Cerf
Physical Review Letters   108, 110505 (2012) (5 pages)   
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A steady-state superradiant laser with less than one intracavity photon
Justin G. Bohnet, Zilong Chen, Joshua M. Weiner, Dominic Meiser, Murray J. Holland, and James K. Thompson
Nature   484, 78- (2012)   
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Effective Hamiltonian for the impurity-impurity interaction in micropillars in the presence of decoherence
J. A. Andrade, A. A. Aligia, and G. F. Quinteiro
Physical Review B   85, 165421- (2012)   
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Time- and frequency-domain polariton interference
G Campbell, M Hosseini, B Sparkes, P Lam, and B Buchler
New Journal of Physics   14, 33022- (2012)   
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Reconstructing the quantum state of oscillator networks with a single qubit
Tommaso Tufarelli, Alessandro Ferraro, M. S. Kim, and Sougato Bose
Physical Review A   85, 032334 (2012) (10 pages)   
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Environment-assisted metrology with spin qubits
P. Cappellaro, G. Goldstein, J. S. Hodges, L. Jiang, J. R. Maze, A. S. Sørensen, and M. D. Lukin
Physical Review A   85, 032336 (2012) (8 pages)   
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Adiabatic Mach-Zehnder interferometer via an array of trapped ions
Y. M. Hu, M. Feng, and C. Lee
Physical Review A   85, 043604 (2012) (5 pages)   
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Optically controlled phase gate for two spin qubits in coupled quantum dots
Li-Bo Chen, L. J. Sham, and Edo Waks
Physical Review B   85, 115319 (2012) (6 pages)   
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Voltage controlled exchange energies of a two-electron silicon double quantum dot with and without charge defects in the dielectric
Rajib Rahman, Erik Nielsen, Richard P. Muller, and Malcolm S. Carroll
Physical Review B   85, 125423 (2012) (6 pages)   
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Quantum speeding-up of computation demonstrated in a superconducting two-qubit processor
Andreas Dewes, Romain Lauro, Florian R. Ong, Vivient Schmitt, Perola Milman, Patrice Bertet, Denis Vion, and Daniel Esteve
Physical Review B   85, 140503 (2012) (4 pages)   
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Fast preparation of a single-hole spin in an InAs/GaAs quantum dot in a Voigt-geometry magnetic field
T. M. Godden, J. H. Quilter, A. J. Ramsay, Yanwen Wu, P. Brereton, I. J. Luxmoore, J. Puebla, A. M. Fox, and M. S. Skolnick
Physical Review B   85, 155310 (2012) (8 pages)   
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Effective mass theory of monolayer doping in the high-density limit
Daniel W. Drumm, Lloyd C. L. Hollenberg, Michelle Y. Simmons, and Mark Friesen
Physical Review B   85, 155419- (2012)   
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Ultrafast Quantum Gates in Circuit QED
G. Romero, D. Ballester, Y. M. Wang, V. Scarani, and E. Solano
Physical Review Letters   108, 120501 (2012) (5 pages)   
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Valley-Based Noise-Resistant Quantum Computation Using Si Quantum Dots
Dimitrie Culcer, A. L. Saraiva, Belita Koiller, Xuedong Hu, and S. Das Sarma
Physical Review Letters   108, 126804 (2012) (5 pages)   
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Quantum Interface between an Electrical Circuit and a Single Atom
D. Kielpinski, D. Kafri, M. J. Woolley, G. J. Milburn, and J. M. Taylor
Physical Review Letters   108, 130504 (2012) (4 pages)   
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Localized End States in Density Modulated Quantum Wires and Rings
Suhas Gangadharaiah, Luka Trifunovic, and Daniel Loss
Physical Review Letters   108, 136803 (2012) (5 pages)   
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Fast Hybrid Silicon Double-Quantum-Dot Qubit
Zhan Shi, C. B. Simmons, J. R. Prance, John King Gamble, Teck Seng Koh, Yun-Pil Shim, Xuedong Hu, D. E. Savage, M. G. Lagally, M. A. Eriksson, Mark Friesen, and S. N. Coppersmith
Physical Review Letters   108, 140503 (2012) (5 pages)   
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Spin Coherence during Optical Excitation of a Single Nitrogen-Vacancy Center in Diamond
G. D. Fuchs, A. L. Falk, V. V. Dobrovitski, and D. D. Awschalom
Physical Review Letters   108, 157602 (2012) (5 pages)   
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Communication: Engineered tunable decay rate and controllable dissipative dynamics
Zhiguo Lü and Hang Zheng
The Journal of Chemical Physics   136, 121103 (2012) (4 pages)   
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Probing a topological quantum critical point in semiconductor-superconductor heterostructures
Sumanta Tewari, J. D. Sau, V. W. Scarola, Chuanwei Zhang, and S. Das Sarma
Physical Review B   85, 155302 (2012) (8 pages)   
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Structure of Si-capped Ge/SiC/Si (001) epitaxial nanodots: Implications for quantum dot patterning
C. W. Petz, D. Yang, J. Levy, and J. A. Floro
Applied Physics Letters   100, 141603- (2012)   
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Electron temperature in electrically isolated Si double quantum dots
A. Rossi, T. Ferrus, and D. A. Williams
Applied Physics Letters   100, 133503 (2012) (3 pages)   
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Coherent Sensing of a Mechanical Resonator with a Single-Spin Qubit
Shimon Kolkowitz, Ania C. Bleszynski Jayich, Quirin P. Unterreithmeier, Steven D. Bennett, Peter Rabl, J. G. E. Harris, and Mikhail D. Lukin
Science   335, 1603-1606 (2012)   
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Optical decoherence and energy level structure of 0.1%Tm³⁺:LiNbO₃
Y. Sun, C. W. Thiel, and R. L. Cone
Physical Review B   85, 165106 (2012) (13 pages)   
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Using Interference for High Fidelity Quantum State Transfer in Optomechanics
Ying-Dan Wang and Aashish A. Clerk
Physical Review Letters   108, 153603 (2012) (5 pages)   
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A cryogen-free dilution refrigerator based Josephson qubit measurement system
Ye Tian, H. F. Yu, H. Deng, G. M. Xue, D. T. Liu, Y. F. Ren, G. H. Chen, D. N. Zheng, X. N. Jing, Li Lu, S. P. Zhao, and Siyuan Han
Review of Scientific Instruments   83, 033907 (2012) (5 pages)   
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Spin manipulation and relaxation in spin-orbit qubits
Massoud Borhani and Xuedong Hu
Physical Review B   85, 125132 (2012) (6 pages)   
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Coherent control of collective atom phase for ultralong, inversion-free photon echoes
Byoung S. Ham
Physical Review A   85, 031402 (2012) (6 pages)   
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Dual-probe decoherence microscopy: probing pockets of coherence in a decohering environment
Jan Jeske, Jared Cole, Clemens Mller, Michael Marthaler, and Gerd Schn
New Journal of Physics   14, 23013- (2012)   
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Adiabatic State Conversion and Pulse Transmission in Optomechanical Systems
Lin Tian
Physical Review Letters   108, 153604 (2012) (5 pages)   
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Polarization properties of excitonic qubits in single self-assembled quantum dots
Catherine Tonin, Richard Hostein, Valia Voliotis, Roger Grousson, Aristide Lemaitre, and Anthony Martinez
Physical Review B   85, 155303 (2012) (9 pages)   
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Fragility of flux qubits against quasiparticle tunneling
Juha Leppäkangas and Michael Marthaler
Physical Review B   85, 144503 (2012) (13 pages)   
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Implementing general measurements on linear optical and solid-state qubits
Yukihiro Ota, Sahel Ashhab, and Franco Nori
Physical Review A   85, 043808 (2012) (7 pages)   
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1/f noise of Josephson-junction-embedded microwave resonators at single photon energies and millikelvin temperatures
K. W. Murch, S. J. Weber, E. M. Levenson-Falk, R. Vijay, and I. Siddiqi
Applied Physics Letters   100, 142601 (2012) (3 pages)   
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One-step implementation of a multiqubit controlled-phase gate with superconducting quantum interference devices coupled to a resonator
Y. Q. Zhang, S. Zhang, K. H. Yeon, and S. C. Yu
Journal of the Optical Society of America B   29, 300-304 (2012)   
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Manipulating single photons from disparate quantum sources to be indistinguishable [Invited]
Glenn S. Solomon, Edward B. Flagg, Sergey V. Polyakov, Tim Thomay, and Andreas Muller
Journal of the Optical Society of America B   29, 319-327 (2012)   
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Dynamics of encrypted information in superconducting qubits with the presence of imperfect operations
N. Metwally
Journal of the Optical Society of America B   29, 389-396 (2012)   
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Ultralong photon-echo-based quantum memories using optical locking
Byoung S. Ham
Journal of the Optical Society of America B   29, 463- (2012)   
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Local probing of propagating acoustic waves in a gigahertz echo chamber
Martin V. Gustafsson, Paulo V. Santos, Gran Johansson, and Per Delsing
Nature Physics   8, 338-343 (2012)   
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Superconducting qubit manipulated by fast pulses: experimental observation of distinct decoherence regimes
F Chiarello, E Paladino, M Castellano, C Cosmelli, A D'Arrigo, G Torrioli, and G Falci
New Journal of Physics   14, 23031- (2012)   
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Engineering integrated pure narrow-band photon sources
E Pomarico, B Sanguinetti, C Osorio, H Herrmann, and R Thew
New Journal of Physics   14, 033008 (2012)   
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Dissipative dynamics of qubits driven by a bichromatic field in the dispersive regime
A Saiko, R Fedaruk, A Kolasa, and S Markevich
Physica Scripta   85, 45301- (2012)   
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A state-insensitive, compensated nanofiber trap
C Lacrote, K Choi, A Goban, D Alton, D Ding, N Stern, and H Kimble
New Journal of Physics   14, 23056- (2012)   
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Cascaded single-photon emission from the Mollow triplet sidebands of a quantum dot
A. Ulhaq, S. Weiler, S. M. Ulrich, R. Robach, M. Jetter, and P. Michler
Nature Photonics   6, 238-242 (2012)   
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Coherent transfer of time-bin photons to electron spins in a semiconductor
Hideo Kosaka, Takahiro Inagaki, Ryuta Hitomi, Fumishige Izawa, Yoshiaki Rikitake, Hiroshi Imamura, Yasuyoshi Mitsumori, and Keiichi Edamatsu
Physical Review A   85, 042304 (2012) (8 pages)   
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