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耗散存在下腔光力学中两机械模式纠缠猫态与稳态纠缠的产生

Generating two-mechanical mode entangled cat states, and steady-state entanglement, in cavity optomechanics in the presence of dissipation

Sanket Das, Jason Twamley

arXiv 2608.05503首次发表:更新:

AI 中文总结

本研究基于耗散工程方法,通过相位依赖的声子跳变相互作用,在腔光力学中实现两机械模式纠缠猫态与稳态纠缠的产生,为多模非高斯态制备提供可行方案。

AI 中文摘要

我们研究一种耗散工程方法,以产生包含两个模式的相位依赖集体模式薛定谔猫态。我们的模型具有单个腔模式,其与两个光谱相同的机械振子相互作用,两个振子通过相位依赖的跳变相互作用耦合。我们证明,通过调整声子跳变相互作用的相位,可以在生成相位依赖的双模猫态过程中控制其二体纠缠。此外,我们的研究表明,即使存在环境效应和热激发,声子相互作用也可作为可调参数,实现对裸机械模式间稳态纠缠的操控。我们的方案为制备相位依赖的多模非高斯态提供了一种可行方法。

英文摘要

We investigate a dissipation-engineering approach to produce a phase-dependent collective-mode Schrödinger cat state involving two modes. Our model features a single cavity mode that interacts with two spectrally identical mechanical oscillators. Both oscillators are coupled through a phase-dependent hopping interaction. We demonstrate that by adjusting the phase of the phonon-hopping interaction, one can control the bipartite entanglement of the phase-dependent two-mode cat state during its generation. Additionally, our study reveals that phonon interactions act as a tunable parameter, enabling the manipulation of steady-state entanglement between the bare mechanical modes, even in the presence of environmental effects and thermal excitations. Our scheme provides a feasible approach for the phase-dependent multi mode non-Gaussian states preparation.

Comments10 pages, 6 figures

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