论文标题

由于动态casimir效应,腔模式的纠缠降解

Entanglement degradation of cavity modes due to the dynamical Casimir effect

论文作者

Del Grosso, Nicolás F., Lombardo, Fernando C., Villar, Paula I.

论文摘要

当其中一个在量子信息理论的背景下,其中一个在谐波上摇动时,我们研究了两个腔之间的纠缠动态。我们发现四个不同的机制取决于运动频率和移动腔的光谱。如果移动腔是三维的三个维度,则只有两种模式将耦合,并且纠缠可以随时间渐变,或者取决于驾驶,或者振荡。另一方面,如果腔具有等距光谱,则纠缠如果以其基本频率驱动,则可以渐近地消失,或者如果以不均匀的谐波频率驱动,则纠缠纠缠。

We study the entanglement dynamics between two cavities when one of them is harmonically shaken in the context of quantum information theory. We find four different regimes depending on the frequency of the motion and the spectrum of the moving cavity. If the moving cavity is three dimensional only two modes inside get coupled and the entanglement can either degrade asymptotically with time or oscillate depending on the driving. On the other hand, if the cavity has an equidistant spectrum the entanglement can either vanish asymptotically if it is driven with its fundamental frequency or have a sudden death if it is driven with an uneven harmonic frequency.

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