arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2008.03307quant-ph
收藏

压缩热态的捷径

Shortcuts to Squeezed Thermal States

Léonce Dupays, Aurélia Chenu

摘要:

谐波系统中的压缩态可以通过各种技术产生,包括改变振荡器频率或使用非线性双光子拉曼相互作用。我们专注于这两种技术,以驱动一个初始的热态到最终的压缩热态与控制压缩参数-振幅和相位-在任意时间。该协议是通过逆向工程设计的单一和开放的动力学。使用随机过程实现耗散的控制,所述随机过程可容易地经由例如,连续的量子测量。重要的是,这允许控制状态熵,并可用于快速热化。因此,开发的协议适合于在任意时间内在受控温度下产生压缩热态。

英文摘要:

Squeezed state in harmonic systems can be generated through a variety of techniques, including varying the oscillator frequency or using nonlinear two-photon Raman interaction. We focus on these two techniques to drive an initial thermal state into a final squeezed thermal state with controlled squeezing parameters -- amplitude and phase -- in arbitrary time. The protocols are designed through reverse engineering for both unitary and open dynamics. Control of the dissipation is achieved using stochastic processes, readily implementable via, e.g., continuous quantum measurements. Importantly, this allows controlling the state entropy and can be used for fast thermalization. The developed protocols are thus suited to generate squeezed thermal states at controlled temperature in arbitrary time.

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。

↑