论文标题
临界性增强量子感应的动态框架
Dynamic framework for criticality-enhanced quantum sensing
论文作者
论文摘要
量子关键性作为一种引人入胜的量子现象，可以为量子传感提供显着的优势。在这里，我们提出了一个动态框架，用于与经历量子相变（QPT）的哈密顿家族的量子传感。通过基于临界量子动态的量子传感，给出量子渔民信息（QFI）的形式主义，我们在接近临界点时证明了其不同的特征。我们说明了使用量子狂犬模型的基本原理和实验实现的细节。该框架适用于各种示例，不依赖于特定状态准备或绝热进化的严格要求。预计将为实施临界性增强量子传感提供一条途径。
Quantum criticality, as a fascinating quantum phenomenon, may provide significant advantages for quantum sensing. Here we propose a dynamic framework for quantum sensing with a family of Hamiltonians that undergo quantum phase transitions (QPT). By giving the formalism of the quantum Fisher information (QFI) for quantum sensing based on critical quantum dynamics, we demonstrate its divergent feature when approaching the critical point. We illustrate the basic principle and the details of experimental implementation using quantum Rabi model. The framework is applicable to a variety of examples and does not rely on the stringent requirement for particular state preparation or adiabatic evolution. It is expected to provide a route towards the implementation of criticality-enhanced quantum sensing.
