Optimal processing of quantum information via W-type entangled coherent states -: art. no. 022315

被引：68

作者：

An, NB ^{[1
]}

机构：

[1] Korea Inst Adv Study, Sch Computat Sci, Seoul 130722, South Korea

来源：

PHYSICAL REVIEW A | 2004年 / 69卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.69.022315

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Optimized probabilistic teleportation and remote symmetric entangling of an arbitrary logical qubit are studied using particular forms of W-type entangled coherent states. Of interest is the fact that, while the teleportation can alternatively be performed by the GHZ-type entangled coherent states, the remote symmetric entangling strictly requires those of the W type.

引用

页数：9

共 59 条

[1] Teleportation of coherent-state superpositions within a network [J].

An, NB .

PHYSICAL REVIEW A, 2003, 68 (02) :6

[2]

AN NB, QUANTPH0303149

[3] Stabilization of quantum computations by symmetrization [J].

Barenco, A ;

Berthiaume, A ;

Deutsch, D ;

Ekert, A ;

Jozsa, R ;

Macchiavello, C .

SIAM JOURNAL ON COMPUTING, 1997, 26 (05) :1541-1557

[4] Universal continuous-variable quantum computation: Requirement of optical nonlinearity for photon counting [J].

Bartlett, SD ;

Sanders, BC .

PHYSICAL REVIEW A, 2002, 65 (04) :5

[5]

BRAUNSTAIN SL, 2001, QUANTUM INFORMATION

[6] Quantum-information distributors: Quantum network for symmetric and asymmetric cloning in arbitrary dimension and continuous limit [J].

Braunstein, SL ;

Buzek, V ;

Hillery, M .

PHYSICAL REVIEW A, 2001, 63 (05) :523131-5231310

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

Braunstein, SL ;

Kimble, HJ .

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

[8] MANIPULATION OF PHOTONS IN A CAVITY BY DISPERSIVE ATOM-FIELD COUPLING - QUANTUM-NONDEMOLITION MEASUREMENTS AND GENERATION OF SCHRODINGER CAT STATES [J].

BRUNE, M ;

HAROCHE, S ;

RAIMOND, JM ;

DAVIDOVICH, L ;

ZAGURY, N .

PHYSICAL REVIEW A, 1992, 45 (07) :5193-5214

[9]

Buzek V, 2000, PHYS REV A, V62, DOI [10.1103/PhysRevA.62.022303, 10.1103/PhysRevA.60.R2626]

[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 5 6 →