Phase space trajectories generated under coupling between a dynamic system and a thermal reservoir
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We analyze the phase space trajectories generated under coupling between a dynamic system and a thermal reservoir which generates a fluctuating as well as dissipative force field. We argue that the phase space trajectory of particles associated with intermediate equilibrium states under heat transfer possess a symmetric form, while the corresponding trajectory is asymmetric in energy transfer as work. The new perspective can help in developing a closed form expression of heat and work at microscopic dimensions with a few degrees of freedom. We also present a novel mathematical model of thermal reservoir as a dynamic system described using a transfer function comprising of a set of zeros. It addresses the theoretical weaknesses of current models of a thermal reservoir comprising of a collection of harmonic oscillators.
DepartmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal of Physics Communications
Institute of Physics Publishing
Sinha, Dhiraj. "Phase space trajectories generated under coupling between a dynamic system and a thermal reservoir." Journal of Physics Communications, 3, 12 (December 2019): 125003 © 2019 The Author
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