Entanglement control via reservoir engineering in ultracold atomic gases

被引：36

作者：

McEndoo, S. ^{[1
]}

Haikka, P. ^{[2
]}

De Chiara, G. ^{[3
]}

Palma, G. M. ^{[4
,5
]}

Maniscalco, S. ^{[1
,2
]}

机构：

[1] Heriot Watt Univ, EPS Phys, SUPA, Edinburgh EH14 4AS, Midlothian, Scotland

[2] Univ Turku, Turku Ctr Quantum Phys, Dept Phys & Astron, FIN-20014 Turku, Finland

[3] Queens Univ Belfast, Sch Math & Phys, Ctr Theoret Atom Mol & Opt Phys, Belfast BT7 1NN, Antrim, North Ireland

[4] Univ Palermo, NEST Ist Nanosci CNR, I-90123 Palermo, Italy

[5] Univ Palermo, Dipartimento Fis & Chim, I-90123 Palermo, Italy

来源：

EPL | 2013年 / 101卷 / 06期

基金：

英国工程与自然科学研究理事会;

关键词：

OPEN QUANTUM-SYSTEMS; MOTT INSULATOR; TELEPORTATION; TRANSITION; SIMULATOR; DYNAMICS; STATES;

D O I：

10.1209/0295-5075/101/60005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the entanglement of two impurity qubits immersed in a Bose-Einstein condensate (BEC) reservoir. This open quantum system model allows for interpolation between a common dephasing scenario and an independent dephasing scenario by modifying the wavelength of the superlattice superposed to the BEC, and how this influences the dynamical properties of the impurities. We demonstrate the existence of rich dynamics corresponding to different values of reservoir parameters, including phenomena such as entanglement trapping, revivals of entanglement, and entanglement generation. In the spirit of reservoir engineering, we present the optimal BEC parameters for entanglement generation and trapping, showing the key role of the ultracold-gas interactions. Copyright (C) EPLA, 2013

引用

页数：6

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