Entanglement control via reservoir engineering in ultracold atomic gases
Entanglement control via reservoir engineering in ultracold atomic gases
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DOI：
10.1209/0295-5075/101/60005
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发表时间：
2012-06
期刊：
影响因子：
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通讯作者：
S. McEndoo;P. Haikka;G. De Chiara;G. Palma;S. Maniscalco
中科院分区：
文献类型：
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作者：
S. McEndoo;P. Haikka;G. De Chiara;G. Palma;S. Maniscalco
研究了玻色-爱因斯坦凝聚（BEC）库中两个杂质量子比特的纠缠。这种开放的量子系统模型允许通过修改叠加到BEC的超晶格的波长以及这如何影响杂质的动力学性质来在共同的退相场景和独立的退相场景之间进行插值。我们证明了丰富的动力学的存在对应于不同的水库参数值，包括纠缠捕获，纠缠的复兴，纠缠产生的现象。在油藏工程的精神，我们提出了最佳的BEC参数纠缠产生和捕获，超冷气体相互作用的关键作用。
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.