Entanglement and Teleportation of Pair Cat States in Amplitude Decoherence Channel

被引：0

作者：

Xu Hang-Shi ^{[1
]}

Xu Jing-Bo

机构：

[1] Zhejiang Univ, Zhejiang Inst Modern Phys, Hangzhou 310027, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2009年 / 52卷 / 01期

基金：

中国国家自然科学基金;

关键词：

entanglement; teleportation; pair cat states; PODOLSKY-ROSEN CHANNELS; PHASE-DIFFERENCE; QUANTUM STATE;

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The dynamic behavior of the entanglement for the pair cat states in the amplitude decoherence channel is studied by adopting the entanglement of formation determined by the concurrence. Then, we consider the teleportation by using joint measurements of the photon-number sum and phase difference with the pair cat states as an entangle resource and discuss the influence of amplitude decoherence on the mean fidelity of the teleportation.

引用

页码：45 / 49

页数：5

共 16 条

[1]

AGARWAL GS, 2004, J OPT B-QUANTUM S O, V6, P373

[2] TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS [J].

BENNETT, CH ;

BRASSARD, G ;

CREPEAU, C ;

JOZSA, R ;

PERES, A ;

WOOTTERS, WK .

PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1895-1899

[3] Experimental realization of teleporting an unknown pure quantum state via dual classical and Einstein-Podolsky-Rosen channels [J].

Boschi, D ;

Branca, S ;

De Martini, F ;

Hardy, L ;

Popescu, S .

PHYSICAL REVIEW LETTERS, 1998, 80 (06) :1121-1125

[4] Teleportation of continuous quantum variables [J].

Braunstein, SL ;

Kimble, HJ .

PHYSICAL REVIEW LETTERS, 1998, 80 (04) :869-872

[5]

CHEN ZB, 2002, PHYS REV LETT, V88

[6] Teleportation using coupled oscillator states [J].

Cochrane, PT ;

Milburn, GJ ;

Munro, WJ .

PHYSICAL REVIEW A, 2000, 62 (06) :062307-062301

[7] Unconditional quantum teleportation [J].

Furusawa, A ;

Sorensen, JL ;

Braunstein, SL ;

Fuchs, CA ;

Kimble, HJ ;

Polzik, ES .

SCIENCE, 1998, 282 (5389) :706-709

[8] Vibrational pair cat states [J].

Gou, SC ;

Steinbach, J ;

Knight, PL .

PHYSICAL REVIEW A, 1996, 54 (05) :4315-4319

[9] Entanglement conditions for two-mode states [J].

Hillery, M ;

Zubairy, MS .

PHYSICAL REVIEW LETTERS, 2006, 96 (05)

[10] Decoherence and entanglement in two-mode squeezed vacuum states [J].

Hiroshima, Tohya .

Physical Review A - Atomic, Molecular, and Optical Physics, 2001, 63 (02) :022305-022301

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