arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1107.3634quant-phcond-mat.other
收藏

强驱动自旋玻色子模型的量子共振效应

Quantum resonant effect of the strongly-driven spin-boson model

Qifeng Liang, Lixian Yu, Gang Chen, Suotang Jia

摘要:

本文从解析和数值两方面讨论了与时间无关的光子场驱动的自旋玻色子模型的丰富的量子动力学。有趣的是,我们预测了一个新的拉比振荡,其周期与驱动振幅成反比。更令人惊讶的是,一些非零的共振峰被发现的\emph{strong}驱动制度的一些特殊的值。此外,对于不同的谐振位置,峰值具有不同的值。因此,这种共振效应的一个重要应用就是实现实验中相关参数的精确测量。我们还说明了这种共振效应是由相干态在两个不同子空间中的演化引起的非平凡周期相位因子的干涉引起的。如果光子场的驱动幅度足够大,我们的预言原则上可以在具有超强耦合的固态腔量子电动力学中观察到。

英文摘要:

In this paper we discuss both analytically and numerically the rich quantum dynamics of the spin-boson model driven by a time-independent field of photon. Interestingly, we predict a new Rabi oscillation, whose period is inversely proportional to the driving amplitude. More surprisingly, some nonzero resonant peaks are found for some special values of the \emph{strong} driving regime. Moreover, for the different resonant positions, the peaks have different values. Thus, an important application of this resonance effect is to realize the precision measurement of the relative parameters in experiment. We also illustrate that this resonant effect arises from the interference of the nontrivial periodic phase factors induced by the evolution of the coherent states in two different subspaces. Our predictions may be, in principle, observed in the solid-state cavity quantum electrodynamics with the ultrastrong coupling if the driving magnitude of the photon field is sufficiently large.

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。

↑