Building multiparticle states with teleportation

被引:14
作者
Galvao, EF [1 ]
Hardy, L [1 ]
机构
[1] Univ Oxford, Clarendon Lab, Ctr Quantum Computat, Oxford OX1 3PU, England
来源
PHYSICAL REVIEW A | 2000年 / 62卷 / 01期
关键词
D O I
10.1103/PhysRevA.62.012309
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe a protocol which can be used to generate any N-partite pure quantum state using Einstein-Podolsky-Rosen pairs. This protocol employs only local operations and classical communication between the N parties (N-LOCC). In particular, we rely on quantum data compression and teleportation to create the desired state. The protocol can be used to obtain upper bounds for the bipartite entanglement of formation of an arbitrary N-partite pure state, in the asymptotic limit of many copies. We apply it to a few multipartite states of interest, showing that in some cases it is not optimal. Generalizations of the protocol are developed which are optimal for some of the examples we consider, but which may still be inefficient for arbitrary states.
引用
收藏
页数:6
相关论文
共 19 条
[1]  
Bacciagaluppi G, 1995, HELV PHYS ACTA, V68, P679
[2]  
Bennett C. H., 1984, PROC IEEE INT C COMP, P175, DOI [DOI 10.1016/J.TCS.2014.05.025, 10.1016/j.tcs.2014.05.025]
[3]  
Bennett C. H., QUANTPH9908073
[4]   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
[5]   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
[6]   Concentrating partial entanglement by local operations [J].
Bennett, CH ;
Bernstein, HJ ;
Popescu, S ;
Schumacher, B .
PHYSICAL REVIEW A, 1996, 53 (04) :2046-2052
[7]  
Buhrman H., QUANTPH9705033
[8]  
CLEVE R, QUANTPH9704026
[9]   Quantum privacy amplification and the security of quantum cryptography over noisy channels (vol 77, pg 2818, 1996) [J].
Deutsch, D ;
Ekert, A ;
Jozsa, R ;
Macchiavello, C ;
Popescu, S ;
Sanpera, A .
PHYSICAL REVIEW LETTERS, 1998, 80 (09) :2022-2022
[10]   Quantum privacy amplification and the security of quantum cryptography over noisy channels [J].
Deutsch, D ;
Ekert, A ;
Jozsa, R ;
Macchiavello, C ;
Popescu, S ;
Sanpera, A .
PHYSICAL REVIEW LETTERS, 1996, 77 (13) :2818-2821