论文标题
在两个组成的玻色 - 约瑟夫森交界处的经典途径
Classical route to ergodicity and scarring phenomena in a two-component Bose-Josephson junction
论文作者
论文摘要
我们考虑由超速原子的二元混合物形成的bose-josephson结（BJJ），以研究相干集体动力学在麦片和量子疤痕上的表现，从而展开了它们之间的联系。通过调整种类间和内物种的相互作用，我们展示了它们之间丰富的约瑟夫森动力学和它们之间的过渡，这在控制整体厄尔及性行为方面起着至关重要的作用。从纠缠频谱中揭示了潜在的经典性的标志，这也阐明了不稳定稳态状态的量子疤痕和导致无障碍行为的周期性轨道的量子疤痕。能量带和疤痕现象之间的登山性程度也可以从自动相关函数以及与冷原子实验相关的冷凝物的相位波动中探测。
We consider a Bose-Josephson junction (BJJ) formed by a binary mixture of ultracold atoms to investigate the manifestation of coherent collective dynamics on ergodicity and quantum scars, unfolding the connection between them. By tuning the inter- and intra-species interaction, we demonstrate a rich variety of Josephson dynamics and transitions between them, which plays a crucial role in controlling the overall ergodic behavior. The signature of underlying classicality is revealed from the entanglement spectrum, which also elucidates the formation of quantum scars of unstable steady states and of periodic orbits leading to athermal behavior. The degree of ergodicity across the energy band and scarring phenomena can be probed from the auto-correlation function as well from the phase fluctuation of the condensates, which has relevance in cold atom experiments.
