Near-complete teleportation of a superposed coherent state

被引:42
作者
Cheong, YW [1 ]
Kim, H [1 ]
Lee, HW [1 ]
机构
[1] Korea Adv Inst Sci & Technol, Dept Phys, Taejon 305701, South Korea
来源
PHYSICAL REVIEW A | 2004年 / 70卷 / 03期
关键词
D O I
10.1103/PhysRevA.70.032327
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The four Bell-type entangled coherent states, \alpha]\-alpha]+/-alpha]\alpha] and \alpha]\alpha]+/-\-alpha]\alpha], can be discriminated with a high probability using only linear optical means, as long as \alpha\ is not too small. Based on this observation, we propose a simple scheme to almost completely teleport a superposed coherent state. The nonunitary transformation that is required to complete the teleportation can be achieved by embedding the receiver's field state in a larger Hilbert space consisting of the field and a single atom and performing a unitary transformation on this Hilbert space.
引用
收藏
页码:032327 / 1
页数:5
相关论文
共 49 条
[1]   Teleportation of coherent-state superpositions within a network [J].
An, NB .
PHYSICAL REVIEW A, 2003, 68 (02) :6
[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]   Experimental quantum teleportation [J].
Bouwmeester, D ;
Pan, JW ;
Mattle, K ;
Eibl, M ;
Weinfurter, H ;
Zeilinger, A .
NATURE, 1997, 390 (6660) :575-579
[5]   Teleportation of continuous quantum variables [J].
Braunstein, SL ;
Kimble, HJ .
PHYSICAL REVIEW LETTERS, 1998, 80 (04) :869-872
[6]   Observing the progressive decoherence of the ''meter'' in a quantum measurement [J].
Brune, M ;
Hagley, E ;
Dreyer, J ;
Maitre, X ;
Maali, A ;
Wunderlich, C ;
Raimond, JM ;
Haroche, S .
PHYSICAL REVIEW LETTERS, 1996, 77 (24) :4887-4890
[7]   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
[8]  
Dakna M, 1997, PHYS REV A, V55, P3184, DOI 10.1103/PhysRevA.55.3184
[9]   Scheme for total quantum teleportation [J].
DelRe, E ;
Crosignani, B ;
Di Porto, P .
PHYSICAL REVIEW LETTERS, 2000, 84 (13) :2989-2992
[10]   EVEN AND ODD COHERENT STATES AND EXCITATIONS OF A SINGULAR OSCILLATOR [J].
DODONOV, VV ;
MALKIN, IA ;
MANKO, VI .
PHYSICA, 1974, 72 (03) :597-615