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arXiv 1102.1838quant-phcond-mat.stat-mech
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两个远距离振荡器与量子库的纠缠

Entangling two distant oscillators with a quantum reservoir

Alexander Wolf, Gabriele De Chiara, Endre Kajari, Eric Lutz, Giovanna Morigi

摘要:

从理论上研究了两个谐振子通过公共库相互作用时纠缠的产生。储层由初始处于热平衡的一维谐振晶体模拟。从一个可分离的状态开始,振荡器可以在一个瞬态时间后变得纠缠,这是热化时间尺度的顺序。这种行为是在有限的温度下观察到的,即使当振荡器的距离显着大于晶体的粒子间的间距。潜在的物理机制可以解释的动力学性质的集体变量的两个振子,可能会去耦或被压缩的水库。我们的预测可以用线性Paul阱中的离子链进行测试。

英文摘要:

The generation of entanglement between two oscillators that interact via a common reservoir is theoretically studied. The reservoir is modeled by a one-dimensional harmonic crystal initially in thermal equilibrium. Starting from a separable state, the oscillators can become entangled after a transient time, that is of the order of the thermalization time scale. This behavior is observed at finite temperature even when the oscillators are at a distance significantly larger than the crystal's interparticle spacing. The underlying physical mechanisms can be explained by the dynamical properties of the collective variables of the two oscillators which may decouple from or be squeezed by the reservoir. Our predictions can be tested with an ion chain in a linear Paul trap.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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