标题： 时钟拉取实现最大效率的无线功率传输 显示英文标题

标题： Clock Pulling Enables Maximum-Efficiency Wireless Power Transfer

摘要： 非厄米无线功率传输（WPT）系统中的非线性宇称-时间（PT）对称性，虽然引起了物理和工程界的广泛关注，但由于其复杂的动力学机制，仍面临着严峻的理论和实际挑战。 在此，我们重新研究非线性非厄米系统中的多稳态，并发现即使在PT对称相中，PT对称状态也不总是稳定的。 我们发现了一种非线性时钟牵引机制，该机制可以强制打破PT对称性。 正确实施这种机制可以改变系统稳定性，特别是在稳定传统上不稳定的状态方面，该状态具有最大的传输效率用于WPT。 我们的工作为非厄米物理提供了新工具，并有望推动技术进步。 显示英文摘要

摘要： Nonlinear parity-time (PT) symmetry in non-Hermitian wireless power transfer (WPT) systems, while attracting significant attention from both physics and engineering communities, have posed formidable theoretical and practical challenges due to their complex dynamical mechanisms. Here, we revisit multistability in nonlinear non-Hermitian systems and find that the PT-symmetry state is not always stable even in PT-symmetry phase. We report a discovery on a nonlinear clock-pulling mechanism, which can forcibly break the PT symmetry. Proper implementation of this mechanism can switch the system stability, particularly in stabilizing the conventional unstable state which has the maximum transfer efficiency for WPT. Our work offers new tools for non-Hermitian physics and is expected to drive technological progress.