Thermal entanglement between alternate qubits of a four-qubit Heisenberg XX chain in a magnetic field

Physical Review A - Atomic, Molecular, and Optical Physics

Volumn 71, Issue 3, 2005, Pages

  Cao, Min ^a   Zhu, Shiqun ^a  

^a SOOCHOW UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

DENSITY OPERATOR; QUBITS; THERMAL ENTANGLEMENT; XX CHAIN;

ANISOTROPY; ANTIFERROMAGNETISM; BOUNDARY CONDITIONS; EIGENVALUES AND EIGENFUNCTIONS; HAMILTONIANS; QUANTUM THEORY;

MAGNETIC FIELDS;

EID: 18444392416     PISSN: 10502947     EISSN: 10941622     Source Type: Journal    
DOI: 10.1103/PhysRevA.71.034311     Document Type: Article

References (20)

1. C. H. Bennett, G. Brassard, C. Crepeau, R. Jozsa, A. Peres, and K. Wooters, Phys. Rev. Lett. 70, 1895 (1993).
2. A. K. Ekert, Phys. Rev. Lett. 67, 661 (1991).
3. M. Murao, D. Jonathan, M. B. Plenio, and V. Vedral, Phys. Rev. A 59, 156 (1999).
4. B. E. Kane, Nature (London) 393, 133 (1998).
5. C. H. Bennett and D. P. Divincenzo, Nature (London) 404, 247 (2000).
6. M. C. Arnesen, S. Bose, and V. Vedral, Phys. Rev. Lett. 87, 017901 (2001).
7. X. G. Wang, Phys. Rev. A 64, 012313 (2001).
8. G. L. Kamta and A. F. Starace, Phys. Rev. Lett. 88, 107901 (2002).
9. Y. Sun, Y. G. Chen, and H. Chen, Phys. Rev. A 68, 044301 (2003).
10. L. F. Santos, G. Rigolin, and C. O. Escobar, Phys. Rev. A 69, 042304 (2004).
11. X. G. Wang, H. Fu, and A. I. Solomon, J. Phys. A 34, 11307 (2001).
12. X. G. Wang, Phys. Rev. A 66, 034302 (2002).
13. X. Q. Xi, W. X. Chen, S. R. Hao, and R. H. Yue, Phys. Lett. A 300, 567 (2002).
14. S. Hill and W. K. Wootters, Phys. Rev. Lett. 78, 5022 (1997).
15. W. K. Wootters, Phys. Rev. Lett. 80, 2245 (1998).
16. M. A. Nielsen, e-print quant-ph/0011036.
17. M. C. Arnesen, S. Bose, and V. Vedral, Phys. Rev. Lett. 87, 017901 (2001).
18. J. Endrejat and H. Büttner, Phys. Rev. A 71, 012305 (2005).
19. U. Glaser, H. Büttner, and H. Fehske, Phys. Rev. A 68, 032318 (2003).
20. G. Brennen, Quantum Inf. Comput. 3, 619 (2003).