Disentanglement of two qubits coupled to an XY spin chain: Role of quantum phase transition

Physical Review A - Atomic, Molecular, and Optical Physics

Volumn 76, Issue 4, 2007, Pages

  Yuan, Zi Gang ^a   Zhang, Ping ^b   Li, Shu Shen ^a  

^a INSTITUTE OF SEMICONDUCTORS   (China)

^b INSTITUTE OF APPLIED PHYSICS AND COMPUTATIONAL MATHEMATICS   (China)

Author keywords

[No Author keywords available]

Indexed keywords

NUMERICAL ANALYSIS; PHASE TRANSITIONS; QUANTUM THEORY;

COHERENCE FACTOR; DISENTANGLEMENT DYNAMICS; QUANTUM CRITICAL BEHAVIOR; QUANTUM PHASE TRANSITION (QPT); STRONG COUPLING; TWO SPIN QUBITS; XY SPIN CHAIN;

MOLECULAR PHYSICS;

EID: 35548933319     PISSN: 10502947     EISSN: 10941622     Source Type: Journal    
DOI: 10.1103/PhysRevA.76.042118     Document Type: Article

References (20)

1. J. Preskill, www.theory.caltech.edu/people/preskill/ph229
2. M. A. Nielson and I. L. Chuang, Quantum Computation and Quantum Information (Cambridge University, Cambridge, England, 2000).
3. L. Viola, S. Loyd, and E. Knill, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.83.4888 83, 4888 (1999).
4. A. Beige, D. Braun, B. Tregenna, and P. L. Knight, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.85.1762 85, 1762 (2000).
5. P. J. Dodd and J. J. Halliwell, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.69.052105 69, 052105 (2004);
6. P. J. Dodd, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.69.052106 69, 052106 (2004).
7. T. Yu and J. H. Eberly, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.93.140404 93, 140404 (2004).
8. M. S. Zubairy, G. S. Agarwal, and M. O. Scully, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.70.012316 70, 012316 (2004).
9. F. M. Cucchietti, J. P. Paz, and W. H. Zurek, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.72.052113 72, 052113 (2005).
10. H. T. Quan, Z. Song, X. F. Liu, P. Zanardi, and C. P. Sun, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.96.140604 96, 140604 (2006).
11. F. M. Cucchietti, S. Fernandez-Vidal, and J. P. Paz, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.75.032337 75, 032337 (2007).
12. Z.-G. Yuan, P. Zhang, and S.-S. Li, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.75.012102 75, 012102 (2007).
13. X. X. Yi, H. Wang, and W. Wang, e-print arXiv:cond-mat/0601318.
14. Z. Sun, X. Wang, and C. P. Sun, e-print arXiv:quant-ph/0704.1172.
15. S. Sachdev, Quantum Phase Transition (Cambridge University Press, Cambridge, England, 1999).
16. R. A. Jalabert and H. M. Pastawski, Phys. Rev. Lett. PRLTAO 0031-9007 10.1103/PhysRevLett.86.2490 86, 2490 (2001).
17. T. Gorin, T. Prosen, T. H. Seligman, and M. Znidaric, Phys. Rep. PRPLCM 0370-1573 10.1016/j.physrep.2006.09.003 435, 33 (2006);
18. T. Prosen and M. Znidaric, J. Phys. A JPHAC5 0305-4470 10.1088/0305-4470/35/6/309 35, 1455 (2002).
19. D. Rossini, T. Calarco, V. Giovannetti, S. Montangero, and R. Fazio, Phys. Rev. A PLRAAN 1050-2947 10.1103/PhysRevA.75.032333 75, 032333 (2007).
20. E. JanÃ, Quantum Inf. Comput. QICUAW 1533-7146 3, 15 (2003).