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arXiv 2201.12536quant-ph
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空腔磁力学中的加速绝热通道

Accelerated adiabatic passage in cavity magnomechanics

Shi-fan Qi, Jun Jing

摘要:

腔磁力学为量子态的操纵提供了一个容易控制的腔模、磁振子模和声子模的混合系统。为了实现光子-磁振子混合模式和声子模式之间的快速和鲁棒的状态转移,我们提出了两个加速绝热通过协议分别基于用于无跃迁量子驱动的反绝热哈密顿量和用于逆向工程的Levis-Riesenfeld不变量。反绝热哈密顿量和Levis-Riesenfeld不变量一般都适用于具有任意目标态的连续变量系统。有趣的是,我们的反绝热哈密顿量可以用产生算符和湮灭算符而不是系统本征态及其时间导数来构造。我们的协议可以优化相对于耦合强度和频率失谐的系统误差的稳定性。它有助于光子和磁子量子信息的量子存储。我们还讨论了耗散和反向旋转相互作用的影响。

英文摘要:

Cavity magnomechanics provides a readily-controllable hybrid system, that consisted of cavity mode, magnon mode, and phonon mode, for quantum state manipulation. To implement a fast-and-robust state transfer between the hybrid photon-magnon mode and the phonon mode, we propose two accelerated adiabatic-passage protocols individually based on the counterdiabatic Hamiltonian for transitionless quantum driving and the Levis-Riesenfeld invariant for inverse engineering. Both the counterdiabatic Hamiltonian and the Levis-Riesenfeld invariant generally apply to the continuous-variable systems with arbitrary target states. It is interesting to find that our counterdiabatic Hamiltonian can be constructed in terms of the creation and annihilation operators rather than the system-eigenstates and their time-derivatives. Our protocol can be optimized with respect to the stability against the systematic errors of coupling strength and frequency detuning. It contributes to a quantum memory for photonic and magnonic quantum information. We also discuss the effects from dissipation and the counter-rotating interactions.

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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