论文标题
ZENO和抗Zeno效应：研究具有强和弱系统 - 环境耦合的自旋 - 玻色子模型的修饰衰减速率
The Zeno and anti-Zeno effects: studying modified decay rates for spin-boson models with both strong and weak system-environment couplings
论文作者
论文摘要
在本文中，我们研究了在重复测量下在进行每次测量之前删除系统演化的情况下会发生什么。从研究一个两级系统结合到两个独立的谐波振荡器浴缸开始，我们采取了大量此类系统的替换，从而调用了大型旋转玻璃模型。尽管我们的每个两级系统都与上述浴缸之一相互作用，但它与另一个浴室相互作用。极性转化用于使强大耦合方案中的问题成为可能。我们发现，涉及一个两级系统的案件与涉及其中集合的案件表现出了质和定量差异。但是，强和弱耦合的总体影响与系统演化存在的耦合相同，这使我们能够确定系统演化对这些效应中的任何一个都没有实际关系。
In this paper, we look into what happens to a quantum system under repeated measurements if system evolution is removed before each measurement is performed. Beginning with investigating a single two-level system coupled to two independent baths of harmonic oscillators, we move to replacing it with a large collection of such systems, thereby invoking the large spin-boson model. Whereas each of our two-level systems interacts strongly with one of the aforementioned baths, it interacts weakly with the other. A polaron transformation is used to make it possible for the problem in the strong coupling regime to be treated with perturbation theory. We find that the case involving a single two-level system exhibits qualitative and quantitative differences from the case involving a collection of them; however, the general effects of strong and weak couplings turn out to be the same as those in the presence of system evolution, something which allows us to establish that system evolution has no practical bearing on any of these effects.
