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By virtue of the properties of thermal entanglement, we succeed to obtain the solution to the representative phase diffusion master equation and give the operator sum representation of density operator. After analyzing the time evolution process of density operator at different initial state, we find out density operators keep invariable with the initial state being Fock state or thermal state. But the system always maintains coherence with phase diffusion when the initial state is coherent state.
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Keywords:
- master equation /
- thermo-entangled state /
- density operator
[1] Glauber R J 1963 Phys. Rev. 130 2529
[2] Glauber R J 1963 Phys. Rev. 131 2766
[3] Fan H Y, Ren G, Hu L Y, Jiang N Q 2010 Chin. Phys. B 19 4206
[4] Shen Y, Lu Y P, Liang X T 2010 Chin. Phys. B 19 308
[5] Shi Z G, Wen W, Chen X W, Xiang S H, Song K H 2010 Acta Phys. Sin. 59 2971(in Chinese)[施振刚, 文伟, 谌雄文, 向少华, 宋克慧 2010 59 2971]
[6] Wu J L, Huang X M 2006 Acta Phys. Sin. 55 6234(in Chinese)[吴俊林, 黄新民 2006 55 6234]
[7] Mufti A, Schmitt H A, Balantekin A B, Sargent M 1993 J. Opt. Soc. Am. B 10 2100
[8] Chatuverdi S, Srinivasan V 1991 J. Mod. Opt. 38 777
[9] Arnoldus H F 1996 J. Opt. Soc. Am. B 13 1099
[10] Ban M 1993 Phys. Rev. A 47 5093
[11] D’Ariano G M 1994 Phys. Lett. A 187 231
[12] Yi X X, Li C, Su J C 2000 Phys. Rev. A 62 013819
[13] Xiang S H, Yang X, Song K H 2004 Acta Phys. Sin. 53 1289(in Chinese)[向少华,杨雄, 宋克慧 2004 53 1289]
[14] Fan H Y, Fan Y 1998 Phys. Lett. A 246 242
[15] Fan H Y, Fan Y 2001 Phys. Lett. A 282 269
[16] Fan H Y, Hu L Y 2008 Opt. Commun. 10 1016
[17] Fan H Y, Lu H L 2007 Mod. Phys. Lett. B 21 183
[18] Fan H Y, Fan Y 2002 J. Phys. A 35 6873
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[1] Glauber R J 1963 Phys. Rev. 130 2529
[2] Glauber R J 1963 Phys. Rev. 131 2766
[3] Fan H Y, Ren G, Hu L Y, Jiang N Q 2010 Chin. Phys. B 19 4206
[4] Shen Y, Lu Y P, Liang X T 2010 Chin. Phys. B 19 308
[5] Shi Z G, Wen W, Chen X W, Xiang S H, Song K H 2010 Acta Phys. Sin. 59 2971(in Chinese)[施振刚, 文伟, 谌雄文, 向少华, 宋克慧 2010 59 2971]
[6] Wu J L, Huang X M 2006 Acta Phys. Sin. 55 6234(in Chinese)[吴俊林, 黄新民 2006 55 6234]
[7] Mufti A, Schmitt H A, Balantekin A B, Sargent M 1993 J. Opt. Soc. Am. B 10 2100
[8] Chatuverdi S, Srinivasan V 1991 J. Mod. Opt. 38 777
[9] Arnoldus H F 1996 J. Opt. Soc. Am. B 13 1099
[10] Ban M 1993 Phys. Rev. A 47 5093
[11] D’Ariano G M 1994 Phys. Lett. A 187 231
[12] Yi X X, Li C, Su J C 2000 Phys. Rev. A 62 013819
[13] Xiang S H, Yang X, Song K H 2004 Acta Phys. Sin. 53 1289(in Chinese)[向少华,杨雄, 宋克慧 2004 53 1289]
[14] Fan H Y, Fan Y 1998 Phys. Lett. A 246 242
[15] Fan H Y, Fan Y 2001 Phys. Lett. A 282 269
[16] Fan H Y, Hu L Y 2008 Opt. Commun. 10 1016
[17] Fan H Y, Lu H L 2007 Mod. Phys. Lett. B 21 183
[18] Fan H Y, Fan Y 2002 J. Phys. A 35 6873
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