论文标题
杰出的纠缠现象：非经典性的非热性
Exceptional entanglement phenomena: non-Hermiticity meeting non-classicality
论文作者
论文摘要
量子力学哈密顿量的非热（NH）扩展是物理学中最重要的进步之一。在过去的二十年中，已经揭示和证明了许多迷人的NH现象，但所有这些现象都可以出现在量子和古典系统中。这导致了一个基本的问题：什么NH签名与古典物理学有根本性的不同？这个问题的解决方案对于探索真正的NH量子力学是必不可少的，但到目前为止，实验中仍未受到实验。在这里，我们通过在NH相互作用的量子系统的特殊点上揭示不同的特殊纠缠现象来解决这个基本问题。我们用自然耗散的光晶体系统（由电路量子电动力学结构设计）说明并演示了这种纯粹的量子力学NH效应。我们的结果为研究真正的量子机械NH物理学的研究奠定了基础，该物理学以杰出的纠缠行为为代表。
Non-Hermitian (NH) extension of quantum-mechanical Hamiltonians represents one of the most significant advancements in physics. During the past two decades, numerous captivating NH phenomena have been revealed and demonstrated, but all of which can appear in both quantum and classical systems. This leads to the fundamental question: what NH signature presents a radical departure from classical physics? The solution of this problem is indispensable for exploring genuine NH quantum mechanics, but remains experimentally untouched so far. Here, we resolve this basic issue by unveiling distinct exceptional entanglement phenomena, exemplified by an entanglement transition, occurring at the exceptional point of NH interacting quantum systems. We illustrate and demonstrate such purely quantum-mechanical NH effects with a naturally dissipative light-matter system, engineered in a circuit quantum electrodynamics architecture. Our results lay the foundation for studies of genuinely quantum-mechanical NH physics, signified by exceptional-point-enabled entanglement behaviors.
