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研究相空间中对称的纠缠相干态, 通过引入正交基矢, 利用concurrence方法计算了纠缠度, 研究了它们的单、双模压缩以及反聚束效应. 数值计算表明, 相空间中对称的纠缠相干态与非经典效应之间存在着密切的联系.
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关键词:
- 纠缠相干态 /
- concurrence /
- 非经典效应
We discuss the entangled coherent states in symmetry phase space by introducing orthogonal basis, calculate their entanglement by means of concurrence, and investigate their squeezing effects of single-mode and two-mode and antibunching effects. The calculations indicate that the entangled coherent state in symmetry phase space is closely related to nonclassical effect.-
Keywords:
- entangled coherent state /
- concurrence /
- nonclassical effect
[1] Schrödinger E 1935 Proc. Cambridge Philos. Soc. 31 555
[2] Einstein A, Podolsky B, Roden N 1935 Phys. Rev. 47 777
[3] Bennet C H, Brassard G, Crépeau C, Jozsa R, Peres A, Wootters W K 1993 Phys. Rev. Lett. 70 1895
[4] Mattle K, Weinfurter H, Kwiat P G, Zeilinger A 1996 Phys. Rev. Lett. 76 4656
[5] Furusawa A, Sorensen J L, Braunstein S L, Fuchs C A, Kimble H J, Polzik E S 1998 Science 282 706
[6] Zhang Q, Li F L, Li H R 2006 Acta Phys. Sin. 55 2275 (in Chinese) [张 茜、李福利、李宏荣 2006 物理学报 55 2275]
[7] Van Enk S J, Hirota O 2001 Phys. Rev. A 64 022313
[8] Wang X G 2002 J. Phys. A: Math. Gen. 35 165
[9] Xia Y J, Guo G C 2004 Chin. Phys. Lett. 21 1877
[10] Wootters W K 1998 Phys. Rev. Lett. 80 2245
[11] Verstraete F, Audenaert K, Moor B D 2001 Phys. Rev. A 64 012316
[12] Jeong H, Kim M S, Lee J 2001 Phys. Rev. A 64 052308.
[13] Mann A, Sanders B C, Munro W J 1995 Phys. Rev. A 51 989
[14] Knight P L, Shore B W 1993 Phys. Rev. A 48 642
[15] Buzek V, Jex I 1990 Int. J. Mod. Phys. B 4 659
[16] Loudon R, Knight P L 1987 J. Mod. Opt. 34 709
[17] Mandel L 1979 Opt. Lett. 4 205
[18] Xia Y J, Gao D Y 2007 Acta Phys. Sin. 56 3703 (in Chinese) [夏云杰、高德营 2007 物理学报 56 3703]
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[1] Schrödinger E 1935 Proc. Cambridge Philos. Soc. 31 555
[2] Einstein A, Podolsky B, Roden N 1935 Phys. Rev. 47 777
[3] Bennet C H, Brassard G, Crépeau C, Jozsa R, Peres A, Wootters W K 1993 Phys. Rev. Lett. 70 1895
[4] Mattle K, Weinfurter H, Kwiat P G, Zeilinger A 1996 Phys. Rev. Lett. 76 4656
[5] Furusawa A, Sorensen J L, Braunstein S L, Fuchs C A, Kimble H J, Polzik E S 1998 Science 282 706
[6] Zhang Q, Li F L, Li H R 2006 Acta Phys. Sin. 55 2275 (in Chinese) [张 茜、李福利、李宏荣 2006 物理学报 55 2275]
[7] Van Enk S J, Hirota O 2001 Phys. Rev. A 64 022313
[8] Wang X G 2002 J. Phys. A: Math. Gen. 35 165
[9] Xia Y J, Guo G C 2004 Chin. Phys. Lett. 21 1877
[10] Wootters W K 1998 Phys. Rev. Lett. 80 2245
[11] Verstraete F, Audenaert K, Moor B D 2001 Phys. Rev. A 64 012316
[12] Jeong H, Kim M S, Lee J 2001 Phys. Rev. A 64 052308.
[13] Mann A, Sanders B C, Munro W J 1995 Phys. Rev. A 51 989
[14] Knight P L, Shore B W 1993 Phys. Rev. A 48 642
[15] Buzek V, Jex I 1990 Int. J. Mod. Phys. B 4 659
[16] Loudon R, Knight P L 1987 J. Mod. Opt. 34 709
[17] Mandel L 1979 Opt. Lett. 4 205
[18] Xia Y J, Gao D Y 2007 Acta Phys. Sin. 56 3703 (in Chinese) [夏云杰、高德营 2007 物理学报 56 3703]
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