Continuous-variable Werner state:: Separability, nonlocality, squeezing, and teleportation -: art. no. 062315

被引：52

作者：

Mista, L ^{[1
]}

Filip, R ^{[1
]}

Fiurásek, J ^{[1
]}

机构：

[1] Palacky Univ, Dept Opt, Olomouc 77200, Czech Republic

来源：

PHYSICAL REVIEW A | 2002年 / 65卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.65.062315

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the separability, nonlocality, and squeezing of the continuous-variable analog of the Werner state: a mixture of a pure two-mode squeezed vacuum state with local thermal radiations. Utilizing this Werner state, coherent-state teleportation in the Braunstein-Kimble setup is discussed.

引用

收藏

页数：8

相关论文

共 34 条

[1] PULSED TWIN BEAMS OF LIGHT [J].

AYTUR, O ;

KUMAR, P .

PHYSICAL REVIEW LETTERS, 1990, 65 (13) :1551-1554

[2] Local environment can enhance fidelity of quantum teleportation [J].

Badziag, P ;

Horodecki, M ;

Horodecki, P ;

Horodecki, R .

PHYSICAL REVIEW A, 2000, 62 (01) :7

[3] Nonlocality of the Einstein-Podolsky-Rosen state in the Wigner representation [J].

Banaszek, K ;

Wódkiewicz, K .

PHYSICAL REVIEW A, 1998, 58 (06) :4345-4347

[4] CONDITIONAL QUANTUM DYNAMICS AND LOGIC GATES [J].

BARENCO, A ;

DEUTSCH, D ;

EKERT, A ;

JOZSA, R .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4083-4086

[5] COMMUNICATION VIA ONE-PARTICLE AND 2-PARTICLE OPERATORS ON EINSTEIN-PODOLSKY-ROSEN STATES [J].

BENNETT, CH ;

WIESNER, SJ .

PHYSICAL REVIEW LETTERS, 1992, 69 (20) :2881-2884

[6] 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

[7] Dense coding for continuous variables [J].

Braunstein, SL ;

Kimble, HJ .

PHYSICAL REVIEW A, 2000, 61 (04) :4

[8] Optimal cloning of coherent states with a linear amplifier and beam splitters [J].

Braunstein, SL ;

Cerf, NJ ;

Iblisdir, S ;

van Loock, P ;

Massar, S .

PHYSICAL REVIEW LETTERS, 2001, 86 (21) :4938-4941

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

Braunstein, SL ;

Kimble, HJ .

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

[10] Cloning of continuous quantum variables [J].

Cerf, NJ ;

Ipe, A ;

Rottenberg, X .

PHYSICAL REVIEW LETTERS, 2000, 85 (08) :1754-1757

← 1 2 3 4 →