Preventing multipartite disentanglement by local modulations

被引:67
作者
Gordon, G. [1 ]
Kurizki, G. [1 ]
机构
[1] Weizmann Inst Sci, Dept Phys Chem, IL-76100 Rehovot, Israel
关键词
D O I
10.1103/PhysRevLett.97.110503
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
An entangled multipartite system coupled to a zero-temperature bath undergoes rapid disentanglement in many realistic scenarios due to local, symmetry-breaking differences in the particle-bath couplings. We show that locally controlled perturbations, addressing each particle individually, can impose a symmetry allowing the existence of decoherence-free multipartite entangled systems.
引用
收藏
页数:4
相关论文
共 34 条
[1]   Accelerating decay by multiple 2π pulses -: art. no. 044101 [J].
Agarwal, GS ;
Scully, MO ;
Walther, H .
PHYSICAL REVIEW A, 2001, 63 (04) :1-3
[2]   Inhibition of decoherence due to decay in a continuum [J].
Agarwal, GS ;
Scully, MO ;
Walther, H .
PHYSICAL REVIEW LETTERS, 2001, 86 (19) :4271-4274
[3]  
AKULIN VM, 2005, DECOHERENCE ENTANGLE
[4]   Exploiting entanglement in communication channels with correlated noise [J].
Ball, J ;
Dragan, A ;
Banaszek, K .
PHYSICAL REVIEW A, 2004, 69 (04) :042324-1
[5]   Experimental demonstration of entanglement-enhanced classical communication over a quantum channel with correlated noise [J].
Banaszek, K ;
Dragan, A ;
Wasilewski, W ;
Radzewicz, C .
PHYSICAL REVIEW LETTERS, 2004, 92 (25) :257901-1
[6]  
BANDYOPADHYAY S, 2003, PHYS REV A, V70
[7]   Dynamical control of macroscopic quantum tunneling [J].
Barone, A ;
Kurizki, G ;
Kofman, AG .
PHYSICAL REVIEW LETTERS, 2004, 92 (20) :200403-1
[8]   Coherence protection by the quantum Zeno effect and nonholonomic control in a Rydberg rubidium isotope -: art. no. 052311 [J].
Brion, E ;
Akulin, VM ;
Comparat, D ;
Dumer, I ;
Harel, G ;
Kébaili, N ;
Kurizki, G ;
Mazets, I ;
Pillet, P .
PHYSICAL REVIEW A, 2005, 71 (05)
[9]   Experimental quantum communication without a shared reference frame [J].
Chen, TY ;
Zhang, J ;
Boileau, JC ;
Jin, XM ;
Yang, B ;
Zhang, Q ;
Yang, T ;
Laflamme, R ;
Pan, JW .
PHYSICAL REVIEW LETTERS, 2006, 96 (15)
[10]   Long-distance quantum communication with atomic ensembles and linear optics [J].
Duan, LM ;
Lukin, MD ;
Cirac, JI ;
Zoller, P .
NATURE, 2001, 414 (6862) :413-418