开放环境中的经典相空间晶体
Classical Phase Space Crystals in an Open Environment
AI总结:
本文研究含热噪声的开放耗散环境对经典相空间晶体的影响,通过定义晶体序参量并绘制相图,给出其存在条件及实验实现与反常手性输运探索的路径。
摘要:
近期研究发现,晶体多体态可以存在于封闭动力学系统的相空间中。相空间晶体可以是一种反常 Chern 绝缘体,在不破缺物理时间反演对称性的情况下支持手性拓扑输运 [L. Guo et al., Phys. Rev. B 105, 094301 (2022)]。在本工作中,我们进一步研究了具有热噪声的开放耗散环境的影响,并确定了现实场景中经典相空间晶体的存在条件。通过定义晶体序参量,我们在耗散率、相互作用和温度构成的参数空间中绘制了相图。本工作为在实验中实现相空间晶体并探索反常手性输运铺平了道路。
英文摘要:
It was recently discovered that a crystalline many-body state can exist in the phase space of a closed dynamical system. A phase space crystal can be an anomalous Chern insulator that supports chiral topological transport without breaking physical time-reversal symmetry [L. Guo et al., Phys. Rev. B 105, 094301 (2022)]. In this work, we further study the effects of an open dissipative environment with thermal noise and identify the existence condition of classical phase space crystals in realistic scenarios. By defining a crystal order parameter, we plot the phase diagram in the parameter space of dissipation rate, interaction, and temperature. Our present work paves the way to realize phase space crystals and explore anomalous chiral transport in experiments.
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