Model study on steady heat capacity in driven stochastic systems

Abstract

We explore two- and three-state Markov models driven out of thermal equilibrium by non-potential forces to demonstrate basic properties of the steady heat capacity based on the concept of quasistatic excess heat. It is shown that large enough driving forces can make the steady heat capacity negative. For both the low- and high-temperature regimes we propose an approximative thermodynamic scheme in terms of "dynamically renormalized" effective energy levels.

10 pages, 7 figures, 1 table

References in corpus (3)

• Steady State Thermodynamics for Heat Conduction -- Microscopic Derivation
• Heat capacity in nonequilibrium steady states
• Representation of nonequilibrium steady states in large mechanical systems

Cited by in corpus (12)

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• Statistical forces from close--to--equilibrium media
• Thermal response in driven diffusive systems
• Adaptive machine and its thermodynamic costs
• Drazin-Inverse and heat capacity for driven random walks on the ring
• Close-to-equilibrium heat capacity
• Negative specific heats: where Clausius and Boltzmann entropies separate