论文标题
单光子干涉法中具有可调节复杂性的非热木木kurek机制
Non-Hermitian Kibble-Zurek mechanism with tunable complexity in single-photon interferometry
论文作者
论文摘要
量子问题的非热门描述最近取得了令人印象深刻的进步，在理解中心方面（例如它们的拓扑特性或特殊点的物理学）方面取得了重大进展，即关键点的非赫米特式对应物。在这里，我们使用单光子干涉仪来重建非热的木瓜 - Zurek机制及其对特殊点的独特缩放行为，通过在执行慢速参数坡道时模拟缺陷产生。重要的是，我们还能够实现高阶的特殊点，从而提供了对其理论上预测的kibble-zurek缩放行为的实验访问。我们的工作代表了增加非铁量子时间进化的实验复杂性的关键步骤。因此，这也进一步将边界从纯粹的单粒子物理学转移到多体域中日益复杂的环境。
Non-Hermitian descriptions of quantum matter have seen impressive progress recently, with major advances in understanding central aspects such as their topological properties or the physics of exceptional points, the non-Hermitian counterpart of critical points. Here, we use single-photon interferometry to reconstruct the non-Hermitian Kibble-Zurek mechanism and its distinct scaling behavior for exceptional points, by simulating the defect production upon performing slow parameter ramps. Importantly, we are able to realise also higher-order exceptional points, providing experimental access to their theoretically predicted characteristic Kibble-Zurek scaling behaviour. Our work represents a crucial step in increasing the experimental complexity of non-Hermitian quantum time-evolution. It thus also furthers the quest to move the frontier from purely single-particle physics towards increasingly complex settings in the many-body realm.
