论文标题
基于挤压驱动器的Jaynes-Cummings模型的关键量子传感
Critical quantum sensing based on the Jaynes-Cummings model with a squeezing drive
论文作者
论文摘要
量子传感通过利用量子系统的唯一特性来提高相关参数的测量准确性。物理系统在量子相变的关键点附近的物理系统的不同敏感性可实现临界性增强的量子感应。量子狂犬模型（QRM）由与单个骨磁场结合的单个量子组组成，代表了实现这种关键增强以实现其简单性的良好候选者，但是实现实现超静脉质量场耦合以实现认识关键现象所需的超翼型静态耦合。在这项工作中，我们探索了一种替代QRM的类似物进行感应的替代方法，利用了Jaynes-Cummings（JC）模型中出现的临界性，其圆柱场是参数驱动的，因此不必在某种程度上放宽对实践实现的要求。
Quantum sensing improves the accuracy of measurements of relevant parameters by exploiting the unique properties of quantum systems. The divergent susceptibility of physical systems near a critical point for quantum phase transition enables criticality-enhanced quantum sensing. The quantum Rabi model (QRM), composed of a single qubit coupled to a single bosonic field, represents a good candidate for realizing such critical enhancement for its simplicity, but it is experimentally challenging to achieve the ultrastrong qubit-field coupling required to realize the critical phenomena. In this work, we explore an alternative to construct the analog of the QRM for the sensing, exploiting the criticality appearing in the Jaynes-Cummings (JC) model whose bosonic field is parametrically driven, not necessitating the ultrastrong coupling condition thus to some extent relaxing the requirement for the practical implementation.
