论文标题
混沌系统中相干和不一致的衰减过程之间的相互作用：量子干扰的作用
Interplay between coherent and incoherent decay processes in chaotic systems: the role of quantum interference
论文作者
论文摘要
由于经常封闭的腔体中的一个小腔内，种群衰减的人口衰减在经典指数形式的顶部显示了量子校正，这是量子相干性的纯粹表现，该量子相干性获得了通用形式，并且可以通过路径干扰来解释。相干，由于系统与外部环境的耦合，这种增强很容易产生反矫正作用。我们研究了通过在Caldeira-legget场景中评估从忽略了散布和消除量化的量子，但不影响量子的动力学，但在质量方面不影响量子，但在不相关的经典路径上，量子的差异是在不相关的，但必须影响量的动力学，但要构成量的动力学。我们发现，干扰和反向谐波的竞争作用仅取决于腔体的普遍性类别，耦合强度和宏观参数，从而导致了生存概率的通用非单调形式。
The population decay due to a small opening in an otherwise closed cavity supporting chaotic classical dynamics displays a quantum correction on top of the classical exponential form, a pure manifestation of quantum coherence that acquires a universal form and can be explained by path interference. Being coherent, such enhancement is prone to decoherence effects due to the coupling of the system to an external environment. We study this interplay between incoherent and coherent quantum corrections to decay by evaluating, within a Caldeira-Legget scenario, off-diagonal contributions to the decoherence functional coming from pairs of correlated classical paths in the time regime where dissipative effects are neglected and decoherence does not affect the classical dynamics, but quantum interference must be accounted for. We find that the competing effects of interference and decoherence lead to a universal non-monotonous form for the survival probability depending only on the universality class, coupling strength, and macroscopic parameters of the cavity.
