工程量子系统振幅双稳性的动力学探索
Dynamical Exploration of Amplitude Bistability in Engineered Quantum Systems
摘要：
非线性系统，其输出不直接与其输入成比例，众所周知，表现出许多有趣和重要的现象，这些现象在过去50年中深刻地改变了我们的技术景观。最近，通过杂化设计量子超材料的能力允许在没有天然类似物的系统中探索这些非线性效应。在这里，我们研究振幅双稳态，这是最基本的非线性现象之一，在一个混合系统组成的超导谐振器电感耦合到一个合奏的氮空位中心。这个自旋系统的一个令人兴奋的特性是它极长的自旋寿命，比混合系统的其他相关时间尺度长十多个数量级。这使我们能够动态地探索腔量子电动力学（cQED）的这种非线性机制，并证明了在数万秒的量级上腔种群的临界减速-这一时间尺度比迄今为止观察到的这种效应要长得多。我们的研究结果为基于非线性现象的未来量子技术提供了基础。
英文摘要：
Nonlinear systems, whose outputs are not directly proportional to their inputs, are well known to exhibit many interesting and important phenomena which have profoundly changed our technological landscape over the last 50 years. Recently the ability to engineer quantum metamaterials through hybridisation has allowed to explore these nonlinear effects in systems with no natural analogue. Here we investigate amplitude bistability, which is one of the most fundamental nonlinear phenomena, in a hybrid system composed of a superconducting resonator inductively coupled to an ensemble of nitrogen-vacancy centres. One of the exciting properties of this spin system is its extremely long spin life-time, more than ten orders of magnitude longer than other relevant timescales of the hybrid system. This allows us to dynamically explore this nonlinear regime of cavity quantum electrodynamics (cQED) and demonstrate a critical slowing down of the cavity population on the order of several tens of thousands of seconds - a timescale much longer than observed so far for this effect. Our results provide the foundation for future quantum technologies based on nonlinear phenomena.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
