论文标题
量化场的演变耦合到热浴：相位空间方法
Evolution of the quantized field coupled to a thermal bath: a phase space approach
论文作者
论文摘要
我们提出了一种描述与有限温度热浴的量化电磁场模式的演变的替代方法。我们使用相干状态和相关的Glauber-Sudarshan $ p $功能在相空间中使用场密度运算符的扩展。该方法允许我们获得系统时间进化的$ p $功能的分析表达式，而无需求解相应的主方程。
We present an alternative method for describing the evolution of a mode of the quantized electromagnetic field in contact with a finite temperature thermal bath. We use the expansion of the field density operator in terms of coherent states and the related Glauber-Sudarshan $P$-function in phase space. The method allows us to obtain analytical expressions of the system's time-evolved $P$-function without needing to solve the corresponding master equation.
