论文标题
开放量子系统动态的费率运营商解开
Rate operator unravelling for open quantum system dynamics
论文作者
论文摘要
带有量子跳跃的随机方法通常用于求解开放量子系统动力学。此外，它们提供了对基本主题的见解，因为测量在量子力学中的作用以及对非马克维亚记忆效应的描述。但是，没有统一的框架使用量子跳跃来描述任何制度中的开放系统动力学。我们通过开发费率运营商量子跳跃（ROQJ）方法来解决此问题。该方法不仅适用于马尔可夫和非马克维亚的演变，而且还允许我们揭示以前方法不起作用的主方程。此外，ROQJ对广泛的动力学产生了严格的测量，包括一组具有负衰减率的主方程，并阐明了使用随机量子跳跃方法时出现的不同类型的存储效应。
Stochastic methods with quantum jumps are often used to solve open quantum system dynamics. Moreover, they provide insight into fundamental topics, as the role of measurements in quantum mechanics and the description of non-Markovian memory effects. However, there is no unified framework to use quantum jumps to describe open system dynamics in any regime. We solve this issue by developing the Rate Operator Quantum Jump (ROQJ) approach. The method not only applies to both Markovian and non-Markovian evolutions, but also allows us to unravel master equations for which previous methods do not work. In addition, ROQJ yields a rigorous measurement-scheme interpretation for a wide class of dynamics, including a set of master equations with negative decay rates, and sheds light on different types of memory effects which arise when using stochastic quantum jump methods.
