论文标题
通过储层工程探测用被困的离子探测耗散的相变
Probing a dissipative phase transition with a trapped ion through reservoir engineering
论文作者
论文摘要
耗散通常被认为是统一量子操作的量子系统中的有害作用。但是，已经表明，在量子信息和量子模拟中，合适的耗散既可以是有用的资源。在这里，我们建议使用带有工程储层的单个捕获离子模拟耗散相变（DPT）模型。我们表明，在量子狂犬模型哈密顿量和振荡器的边带冷却下，离子的空间振荡模式在统一进化后交替应用统一进化后达到稳态。振荡模式的平均声子数被用作订单参数，以提供DPT的证据。我们的工作强调了被困离子对模拟开放量子系统的适用性，并应促进对DPT进行各种耗散术语的进一步研究。
Dissipation is often considered as a detrimental effect in quantum systems for unitary quantum operations. However, it has been shown that suitable dissipation can be useful resources both in quantum information and quantum simulation. Here, we propose and experimentally simulate a dissipative phase transition (DPT) model using a single trapped ion with an engineered reservoir. We show that the ion's spatial oscillation mode reaches a steady state after the alternating application of unitary evolution under a quantum Rabi model Hamiltonian and sideband cooling of the oscillator. The average phonon number of the oscillation mode is used as the order parameter to provide evidence for the DPT. Our work highlights the suitability of trapped ions for simulating open quantum systems and shall facilitate further investigations of DPT with various dissipation terms.
