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arXiv 0912.1602quant-ph
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观察离子阱中纠缠动力学的不同相位

Observing different phases for the dynamics of entanglement in an ion trap

Cecilia Cormick, Juan Pablo Paz

摘要:

耦合到一个共同的热环境中的两个振荡器之间的纠缠的演化是不平凡的。长时间限制具有三个定性不同的行为(阶段),这取决于诸如浴温度的参数({ \em Phys. Rev. Lett.} \textbf{100},220401)。这些阶段包括不消失的长期纠缠的情况下,与最终的解纠缠状态,和情况显示的事件的消失和复活的纠缠的无限序列。我们描述了一个实验,以实现这些不同的情况下,在离子阱。两个离子的运动自由度被用来模拟系统,而耦合到一个额外的(中央)离子,这是连续的激光冷却,是一个去肩水库的网关。该方案允许观察和控制的运动纠缠动力学,是一类在非马尔可夫制度的量子开放系统的模拟的例子。

英文摘要:

The evolution of the entanglement between two oscillators coupled to a common thermal environment is non-trivial. The long time limit has three qualitatively different behaviors (phases) depending on parameters such as the temperature of the bath ({\em Phys. Rev. Lett.} \textbf{100}, 220401). The phases include cases with non-vanishing long-term entanglement, others with a final disentangled state, and situations displaying an infinite sequence of events of disappearance and revival of entanglement. We describe an experiment to realize these different scenarios in an ion trap. The motional degrees of freedom of two ions are used to simulate the system while the coupling to an extra (central) ion, which is continuously laser cooled, is the gateway to a decohering reservoir. The scheme proposed allows for the observation and control of motional entanglement dynamics, and is an example of a class of simulations of quantum open systems in the non-Markovian regime.

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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