Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India.
Phys Rev E. 2019 Jan;99(1-1):012112. doi: 10.1103/PhysRevE.99.012112.
We study the heat fluctuation of an overdamped Brownian particle trapped in a harmonic potential and driven by active noise. Employing the phase-space path integral method we derive a general formula for the probability distribution of heat exchange in a generic model of an active bath. The work has been extended by considering two particular models of active noise and computing an exact analytical expression for distribution in Gaussian colored noise and a semianalytical result in the Poissonian bath. We corroborate the fluctuation theorem with our analytical findings by introducing the familiar concept of effective temperature and as a corollary the total entropy production is calculated.
我们研究了被简谐势约束并受到主动噪声驱动的过阻尼布朗粒子的热涨落。我们采用相空间路径积分方法，推导出了一般模型的主动浴中热交换概率分布的通用公式。通过考虑两种特定的主动噪声模型，并计算了高斯有色噪声中的分布的精确解析表达式和泊松浴中的半解析结果，对该工作进行了扩展。我们通过引入熟悉的有效温度概念，证实了涨落定理，并作为推论计算了总熵产生。
