极化亚欧姆热浴中的有限温度动力学:运动方程-张量列分层研究
Finite temperature dynamics in a polarized sub-Ohmic heat bath: a hierarchical equations of motion-tensor train study
AI总结:
本文通过解析与数值精确方法研究极化亚欧姆热浴中自旋-玻色子模型的有限温度动力学,发现分叉现象,温度对动力学的影响在分叉前后相反,且对初始制备和热效应敏感。
摘要:
本文采用解析工具和数值精确的运动方程-张量列分层方法,研究了有限温度下极化初始条件下亚欧姆自旋-玻色子模型的动力学。通过分析非平衡动力学的特征,我们发现了一种分叉现象,它将动力学分为两个区域。研究发现,在分叉时间之前,温度升高会减慢种群动力学,而在分叉时间之后则产生相反的效果。动力学对浴的初始制备和热效应高度敏感。
英文摘要:
Dynamics of the sub-Ohmic spin-boson model under polarized initial conditions at finite temperature is investigated by employing both analytical tools and the numerically accurate hierarchical equations of motion-tensor train method. By analyzing the features of nonequilibrium dynamics, we discovered a bifurcation phenomenon which separates two regimes of the dynamics. It is found that before the bifurcation time, increasing temperature slows down the population dynamics, while the opposite effect occurs after the bifurcation time. The dynamics is highly sensitive to both initial preparation of the bath and thermal effects.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。