http://pra.aps.org/ Recently published articles in Phys. Rev. A in the Table of Content section "Quantum information" en-us Copyright (c) 2008 The American Physical Society 2008-05-07T08:08:39-04:00 assocpub@aps.org rss@aps.org hourly 4 2008-05-07T08:08:39-04:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevA.77.052305 Author(s): A. M. Rey, L. Jiang, M. Fleischhauer, E. Demler, and M. D. Lukin<br/>We discuss a method to achieve decoherence resistant entanglement generation in strongly interacting ensembles of two-level spin systems. Our method uses designed gapped Hamiltonians to create a protected manifold of multidegenerate levels which is robust against local decoherence processes. We appl...<br/>[Phys. Rev. A 77, 052305] Published Mon May 05, 2008 A. M. Rey, L. Jiang, M. Fleischhauer, E. Demler, and M. D. Lukin 2008-05-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.052305 Phys. Rev. A 77, 052305 text/html article Physical Review A 77 5 2008-05-05T00:00:00-04:00 052305 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.052304 Author(s): Ayumu Sugita<br/>We propose a method to generate entanglement measures systematically by using the irreducible decomposition of some copies of a state under the local unitary (LU) transformations. It is applicable to general multipartite systems. We show that there are entanglement monotones corresponding to singlet...<br/>[Phys. Rev. A 77, 052304] Published Fri May 02, 2008 Ayumu Sugita 2008-05-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.052304 Phys. Rev. A 77, 052304 text/html article Physical Review A 77 5 2008-05-02T00:00:00-04:00 052304 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.052303 Author(s): Rebing Wu, Raj Chakrabarti, and Herschel Rabitz<br/>The methodology of optimal control theory is applied to the problem of implementing quantum gates in continuous-variable (CV) systems with quadratic Hamiltonians. We demonstrate that it is possible to define a fidelity measure for CV gate optimization that is devoid of traps, such that the search fo...<br/>[Phys. Rev. A 77, 052303] Published Thu May 01, 2008 Rebing Wu, Raj Chakrabarti, and Herschel Rabitz 2008-05-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.052303 Phys. Rev. A 77, 052303 text/html article Physical Review A 77 5 2008-05-01T00:00:00-04:00 052303 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.052302 Author(s): N. Paunković, P. D. Sacramento, P. Nogueira, V. R. Vieira, and V. K. Dugaev<br/>We introduce a partial state fidelity approach to quantum phase transitions. We consider a superconducting lattice with a magnetic impurity inserted at its center, and look at the fidelity between partial (either one-site or two-site) quantum states. In the vicinity of the point of the quantum phase...<br/>[Phys. Rev. A 77, 052302] Published Thu May 01, 2008 N. Paunković, P. D. Sacramento, P. Nogueira, V. R. Vieira, and V. K. Dugaev 2008-05-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.052302 Phys. Rev. A 77, 052302 text/html article Physical Review A 77 5 2008-05-01T00:00:00-04:00 052302 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.052301 Author(s): Raisa I. Karasik, Karl-Peter Marzlin, Barry C. Sanders, and K. Birgitta Whaley<br/>We present a detailed analysis of decoherence free subspaces and develop a rigorous theory that provides necessary and sufficient conditions for dynamically stable decoherence free subspaces. This allows us to identify a special class of decoherence free states which rely on incoherent generation of...<br/>[Phys. Rev. A 77, 052301] Published Thu May 01, 2008 Raisa I. Karasik, Karl-Peter Marzlin, Barry C. Sanders, and K. Birgitta Whaley 2008-05-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.052301 Phys. Rev. A 77, 052301 text/html article Physical Review A 77 5 2008-05-01T00:00:00-04:00 052301 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042325 Author(s): Anthony Leverrier, Romain Alléaume, Joseph Boutros, Gilles Zémor, and Philippe Grangier<br/>We propose a method for extracting an errorless secret key in a continuous-variable quantum key distribution protocol, which is based on Gaussian modulation of coherent states and homodyne detection. The crucial feature is an eight-dimensional reconciliation method based on the algebraic properties ...<br/>[Phys. Rev. A 77, 042325] Published Wed Apr 30, 2008 Anthony Leverrier, Romain Alléaume, Joseph Boutros, Gilles Zémor, and Philippe Grangier 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042325 Phys. Rev. A 77, 042325 text/html article Physical Review A 77 4 2008-04-30T00:00:00-04:00 042325 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042324 Author(s): F. M. Toyama, W. van Dijk, Y. Nogami, M. Tabuchi, and Y. Kimura<br/>Phase matching has been studied for the Grover algorithm as a way of enhancing the efficiency of the quantum search. Recently Li and Li found that a particular form of phase matching yields, with a single Grover operation, a success probability greater than 25/27 for finding the equal-amplitude supe...<br/>[Phys. Rev. A 77, 042324] Published Wed Apr 30, 2008 F. M. Toyama, W. van Dijk, Y. Nogami, M. Tabuchi, and Y. Kimura 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042324 Phys. Rev. A 77, 042324 text/html article Physical Review A 77 4 2008-04-30T00:00:00-04:00 042324 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042323 Author(s): J. Metz and S. D. Barrett<br/>Many promising schemes for quantum information processing (QIP) rely on few-photon interference effects. In these proposals, the photons are treated as being indistinguishable particles. However, single photon sources are typically subject to variation from device to device. Thus the photons emitted...<br/>[Phys. Rev. A 77, 042323] Published Wed Apr 30, 2008 J. Metz and S. D. Barrett 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042323 Phys. Rev. A 77, 042323 text/html article Physical Review A 77 4 2008-04-30T00:00:00-04:00 042323 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.040303 Author(s): Winton G. Brown, Yaakov S. Weinstein, and Lorenza Viola<br/>We show how to efficiently generate pseudorandom states suitable for quantum information processing via cluster-state quantum computation. By reformulating pseudorandom algorithms in the cluster-state picture, we identify a strategy for optimizing pseudorandom circuits by properly choosing single-qu...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 77, 040303] Published Wed Apr 30, 2008 Winton G. Brown, Yaakov S. Weinstein, and Lorenza Viola 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.040303 Phys. Rev. A 77, 040303 text/html article Physical Review A 77 4 2008-04-30T00:00:00-04:00 040303 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.040302 Author(s): C. F. Roos, T. Monz, K. Kim, M. Riebe, H. Häffner, D. F. V. James, and R. Blatt<br/>We experimentally investigate nonlinear couplings between individual quanta of the vibrational modes of strings of cold ions stored in linear ion traps. The nonlinearity is caused by the ions’ Coulomb interaction and gives rise to a Kerr-type interaction Hamiltonian H=ℏχn [over ̂] _{r} n [over...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 77, 040302] Published Tue Apr 29, 2008 C. F. Roos, T. Monz, K. Kim, M. Riebe, H. Häffner, D. F. V. James, and R. Blatt 2008-04-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.040302 Phys. Rev. A 77, 040302 text/html article Physical Review A 77 4 2008-04-29T00:00:00-04:00 040302 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042322 Author(s): H. Bombin and M. A. Martin-Delgado<br/>We find that the overlap of a topological quantum color-code state, representing a quantum memory, with a factorized state of qubits can be written as the partition function of a three-body classical Ising model on triangular or Union Jack lattices. This mapping allows us to test that different comp...<br/>[Phys. Rev. A 77, 042322] Published Thu Apr 24, 2008 H. Bombin and M. A. Martin-Delgado 2008-04-24T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042322 Phys. Rev. A 77, 042322 text/html article Physical Review A 77 4 2008-04-24T00:00:00-04:00 042322 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.044303 Author(s): Shi-Biao Zheng<br/>A scheme is presented for the teleportation of an unknown atomic state between two separated cavities. The scheme involves two interaction-detection cycles and uses resonantly coupled atoms with an additional ground state not coupled to the cavity field. Remarkably, the damping of one basis state is...<br/>[Phys. Rev. A 77, 044303] Published Wed Apr 23, 2008 Shi-Biao Zheng 2008-04-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.044303 Phys. Rev. A 77, 044303 text/html article Physical Review A 77 4 2008-04-23T00:00:00-04:00 044303 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042321 Author(s): Mario Ziman and Teiko Heinosaari<br/>We address the problem of unambiguous discrimination and identification among quantum observables. We set a general framework and investigate in detail the case of qubit observables. In particular, we show that perfect discrimination with two shots is possible only for sharp qubit observables (e.g.,...<br/>[Phys. Rev. A 77, 042321] Published Wed Apr 23, 2008 Mario Ziman and Teiko Heinosaari 2008-04-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042321 Phys. Rev. A 77, 042321 text/html article Physical Review A 77 4 2008-04-23T00:00:00-04:00 042321 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042320 Author(s): M. Mohseni, A. T. Rezakhani, and A. Aspuru-Guzik<br/>We provide an approach for characterization of quantum Hamiltonian systems via utilizing a single measurement device. Specifically, we demonstrate how external quantum correlations can be used for Hamiltonian identification tasks. We explicitly introduce experimental procedures for direct estimation...<br/>[Phys. Rev. A 77, 042320] Published Tue Apr 22, 2008 M. Mohseni, A. T. Rezakhani, and A. Aspuru-Guzik 2008-04-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042320 Phys. Rev. A 77, 042320 text/html article Physical Review A 77 4 2008-04-22T00:00:00-04:00 042320 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042319 Author(s): Michael J. O’Hara and Dianne P. O’Leary<br/>We provide rigorous bounds for the error of the adiabatic approximation of quantum mechanics under four sources of experimental error: perturbations in the initial condition, systematic time-dependent perturbations in the Hamiltonian, coupling to low-energy quantum systems, and decoherent time-depen...<br/>[Phys. Rev. A 77, 042319] Published Tue Apr 22, 2008 Michael J. O’Hara and Dianne P. O’Leary 2008-04-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042319 Phys. Rev. A 77, 042319 text/html article Physical Review A 77 4 2008-04-22T00:00:00-04:00 042319 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042318 Author(s): Thomas Durt, L. C. Kwek, and Dagomir Kaszlikowski<br/>We generalize in higher dimensions the so-called “flying-qubit scheme” that was described in the paper by Lim, Beige, and Kwek [Phys. Rev. Lett. 95, 030505 (2005)]. In that paper, the authors proposed a scheme according to which distant atoms get entangled during a measurement, in the Bell basis...<br/>[Phys. Rev. A 77, 042318] Published Tue Apr 22, 2008 Thomas Durt, L. C. Kwek, and Dagomir Kaszlikowski 2008-04-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042318 Phys. Rev. A 77, 042318 text/html article Physical Review A 77 4 2008-04-22T00:00:00-04:00 042318 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042317 Author(s): Yan-Xiao Gong, Xu-Bo Zou, Xiao-Ling Niu, Jian Li, Yun-Feng Huang, and Guang-Can Guo<br/>We propose a scheme to generate four-photon polarization-entangled states, which enables the encoding of an arbitrary qubit into a four-qubit decoherence-free subspace robust against collective decoherence. The scheme is based on linear optical elements and postselection strategy, which is feasible ...<br/>[Phys. Rev. A 77, 042317] Published Tue Apr 22, 2008 Yan-Xiao Gong, Xu-Bo Zou, Xiao-Ling Niu, Jian Li, Yun-Feng Huang, and Guang-Can Guo 2008-04-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042317 Phys. Rev. A 77, 042317 text/html article Physical Review A 77 4 2008-04-22T00:00:00-04:00 042317 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.040301 Author(s): Sang Min Lee, Se-Wan Ji, Hai-Woong Lee, and M. Suhail Zubairy<br/>An experimental scheme is proposed that allows direct measurement of the concurrence of a two-qubit cavity system. It is based on the cavity-QED technology using atoms as flying qubits and relies on the identity of the two-particle visibility of the atomic probability with the concurrence of the cav...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. A 77, 040301] Published Tue Apr 22, 2008 Sang Min Lee, Se-Wan Ji, Hai-Woong Lee, and M. Suhail Zubairy 2008-04-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.040301 Phys. Rev. A 77, 040301 text/html article Physical Review A 77 4 2008-04-22T00:00:00-04:00 040301 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.044302 Author(s): ShengLi Zhang, XuBo Zou, Ke Li, ChenHui Jin, and GuangCan Guo<br/>This paper addresses the minimal disturbance quantum discrimination among a set of N pure states which are symmetrically distributed on a Bloch sphere equator. The optimal trade-off between the discrimination probability and the state disturbance is exactly derived. The minimal disturbance discrimin...<br/>[Phys. Rev. A 77, 044302] Published Mon Apr 21, 2008 ShengLi Zhang, XuBo Zou, Ke Li, ChenHui Jin, and GuangCan Guo 2008-04-21T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.044302 Phys. Rev. A 77, 044302 text/html article Physical Review A 77 4 2008-04-21T00:00:00-04:00 044302 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042316 Author(s): J. Dajka, M. Mierzejewski, and J. Łuczka<br/>Two noninteracting qubits, initially prepared in an entangled state, are coupled to their own independent environments and evolve under their influence. The reduced non-Markovian dynamics of two qubits is exact for arbitrary model parameters. Necessary and sufficient conditions for nonvanishing enta...<br/>[Phys. Rev. A 77, 042316] Published Fri Apr 18, 2008 J. Dajka, M. Mierzejewski, and J. Łuczka 2008-04-18T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042316 Phys. Rev. A 77, 042316 text/html article Physical Review A 77 4 2008-04-18T00:00:00-04:00 042316 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042315 Author(s): Li Xiao, Chuan Wang, Wei Zhang, Yidong Huang, Jiangde Peng, and Guilu Long<br/>Polarization-entangled photon pairs are easily perturbed in noisy channels. We propose an efficient strategy for sharing polarization-entangled photon pairs (PEPPs) using the additional frequency labels of polarization-frequency doubly entangled photon pairs (DEPPs). The DEPPs are used in transmissi...<br/>[Phys. Rev. A 77, 042315] Published Wed Apr 16, 2008 Li Xiao, Chuan Wang, Wei Zhang, Yidong Huang, Jiangde Peng, and Guilu Long 2008-04-16T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042315 Phys. Rev. A 77, 042315 text/html article Physical Review A 77 4 2008-04-16T00:00:00-04:00 042315 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042314 Author(s): M. A. Jafarizadeh, M. Rezaei, N. Karimi, and A. R. Amiri<br/>Unambiguous discrimination between nonorthogonal but linearly independent quantum states is a challenging problem in quantum information processing. In this study, using the connection between Lewenstein-Sanpera decomposition (LSD) and optimal unambiguous state discrimination (OPUSD), an analytic re...<br/>[Phys. Rev. A 77, 042314] Published Wed Apr 16, 2008 M. A. Jafarizadeh, M. Rezaei, N. Karimi, and A. R. Amiri 2008-04-16T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042314 Phys. Rev. A 77, 042314 text/html article Physical Review A 77 4 2008-04-16T00:00:00-04:00 042314 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042313 Author(s): Bei Zeng, Xie Chen, and Isaac L. Chuang<br/>Teleportation is a crucial element in fault-tolerant quantum computation and a complete understanding of its capacity is very important for the practical implementation of optimal fault-tolerant architectures. It is known that stabilizer codes support a natural set of gates that can be more easily i...<br/>[Phys. Rev. A 77, 042313] Published Wed Apr 16, 2008 Bei Zeng, Xie Chen, and Isaac L. Chuang 2008-04-16T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042313 Phys. Rev. A 77, 042313 text/html article Physical Review A 77 4 2008-04-16T00:00:00-04:00 042313 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042312 Author(s): F. L. Marquezino, R. Portugal, G. Abal, and R. Donangelo<br/>The mixing time of a discrete-time quantum walk on the hypercube is considered. The mean probability distribution of a Markov chain on a hypercube is known to mix to a uniform distribution in time O(n log n) . We show that the mean probability distribution of a discrete-time quantum walk on a hy...<br/>[Phys. Rev. A 77, 042312] Published Wed Apr 16, 2008 F. L. Marquezino, R. Portugal, G. Abal, and R. Donangelo 2008-04-16T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042312 Phys. Rev. A 77, 042312 text/html article Physical Review A 77 4 2008-04-16T00:00:00-04:00 042312 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042311 Author(s): Xiang-Bin Wang, Cheng-Zhi Peng, Jun Zhang, Lin Yang, and Jian-Wei Pan<br/>The existing theory of decoy-state quantum cryptography assumes the exact control of each state from Alice’s source. Such exact control is impossible in practice. We develop the theory of decoy-state method so that it is unconditionally secure even if there are state errors of sources, if the rang...<br/>[Phys. Rev. A 77, 042311] Published Wed Apr 16, 2008 Xiang-Bin Wang, Cheng-Zhi Peng, Jun Zhang, Lin Yang, and Jian-Wei Pan 2008-04-16T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042311 Phys. Rev. A 77, 042311 text/html article Physical Review A 77 4 2008-04-16T00:00:00-04:00 042311 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042310 Author(s): N. L. Harshman and G. Hutton<br/>This article provides a convenient framework for quantitative evaluation of the entanglement generated when two structureless, distinguishable particles scatter nonrelativistically in one dimension. It explores how three factors determine the amount of entanglement generated: the momentum distributi...<br/>[Phys. Rev. A 77, 042310] Published Tue Apr 15, 2008 N. L. Harshman and G. Hutton 2008-04-15T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042310 Phys. Rev. A 77, 042310 text/html article Physical Review A 77 4 2008-04-15T00:00:00-04:00 042310 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042309 Author(s): Fardin Kheirandish, S. Javad Akhtarshenas, and Hamidreza Mohammadi<br/>The role of spin-orbit interaction in the ground state and thermal entanglement of a Heisenberg XYZ two-qubit system in the presence of an inhomogeneous magnetic field is investigated. We show that the ground state entanglement tends to vanish suddenly for a certain value of the spin-orbit parameter...<br/>[Phys. Rev. A 77, 042309] Published Mon Apr 14, 2008 Fardin Kheirandish, S. Javad Akhtarshenas, and Hamidreza Mohammadi 2008-04-14T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042309 Phys. Rev. A 77, 042309 text/html article Physical Review A 77 4 2008-04-14T00:00:00-04:00 042309 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042308 Author(s): Yu-Bo Sheng, Fu-Guo Deng, and Hong-Yu Zhou<br/>We present a way for entanglement purification based on two parametric down-conversion (PDC) sources with cross-Kerr nonlinearities. It is comprised of two processes. The first one is a primary entanglement purification protocol for PDC sources with nondestructive quantum nondemolition (QND) detecto...<br/>[Phys. Rev. A 77, 042308] Published Wed Apr 09, 2008 Yu-Bo Sheng, Fu-Guo Deng, and Hong-Yu Zhou 2008-04-09T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042308 Phys. Rev. A 77, 042308 text/html article Physical Review A 77 4 2008-04-09T00:00:00-04:00 042308 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.042307 Author(s): Matthew B. Elliott, Bryan Eastin, and Carlton M. Caves<br/>We introduce a graphical representation of stabilizer states and translate the action of Clifford operators on stabilizer states into graph operations on the corresponding stabilizer-state graphs. Our stabilizer graphs are constructed of solid and hollow nodes, with (undirected) edges between nodes ...<br/>[Phys. Rev. A 77, 042307] Published Tue Apr 08, 2008 Matthew B. Elliott, Bryan Eastin, and Carlton M. Caves 2008-04-08T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.042307 Phys. Rev. A 77, 042307 text/html article Physical Review A 77 4 2008-04-08T00:00:00-04:00 042307 Quantum information Quantum information http://link.aps.org/doi/10.1103/PhysRevA.77.044301 Author(s): Da-Sheng Diao, Yong-Sheng Zhang, Xiang-Fa Zhou, and Guang-Can Guo<br/>We present an efficient quantum computation protocol on a special class of systems in which the positions of all quantum bits are fixed. This protocol is a generalized scheme based on L.-M. Duan and R. Raussendorf [Phys. Rev. Lett. 95, 080503 (2005)].<br/>[Phys. Rev. A 77, 044301] Published Mon Apr 07, 2008 Da-Sheng Diao, Yong-Sheng Zhang, Xiang-Fa Zhou, and Guang-Can Guo 2008-04-07T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevA.77.044301 Phys. Rev. A 77, 044301 text/html article Physical Review A 77 4 2008-04-07T00:00:00-04:00 044301 Quantum information Quantum information