Correlation-enhanced Stability of Microscopic Cyclic Heat Engines

Abstract

For cyclic heat engines operating in a finite cycle period, thermodynamic quantities have intercycle and intracycle correlations. By tuning the driving protocol appropriately, we can get the negative intercycle correlation to reduce the fluctuation of work through multiple cycles, which leads to the enhanced stability compared to the single-cycle operation. Taking the Otto engine with an overdamped Brownian particle as a working substance, we identify a scenario to get such enhanced stability by the intercycle correlation. Furthermore, we demonstrate that the enhancement can be readily realized in the current experiments for a wide range of protocols. By tuning the parameters within the experimentally achievable range, the uncertainty of work can be reduced to below $\sim 50\%$.

7+7 pages, 5+3 figures

References in corpus (23)

• Thermodynamic uncertainty relation for biomolecular processes
• Efficiency at maximum power: An analytically solvable model for stochastic heat engines
• Single ion heat engine with maximum efficiency at maximum power
• The unlikely Carnot efficiency
• Exact microscopic analysis of a thermal Brownian motor
• An all-optical nanomechanical heat engine
• The Brownian gyrator: a minimal heat engine on the nano-scale
• Efficiency statistics at all times: Carnot limit at finite power
• Adiabatic processes realized with a trapped Brownian particle
• Operationally accessible bounds on fluctuations and entropy production in periodically driven systems
• Experimental Realization of a Minimal Microscopic Heat Engine
• Universal theory of efficiency fluctuations
• Single Particle Stochastic Heat Engine
• Exactly solvable model of stochastic heat engine: Optimization of power, its fluctuations and efficiency
• Efficiency fluctuations in microscopic machines
• Universal Bounds on Fluctuations in Continuous Thermal Machines
• Fluctuations in heat engines
• Underdamped Active Brownian Heat Engine
• Realization of nonequilibrium thermodynamic processes using external colored noise
• Stochastic Efficiency for Effusion as a Thermal Engine
• Bounds on fluctuations for finite-time quantum Otto cycle
• Work and Efficiency of Quantum Otto Cycles in Power Law Trapping Potentials
• Finite-Time Thermodynamics of Fluctuations in Microscopic Heat Engines

Cited by in corpus (3)

• Finite-Time Thermodynamics of Fluctuations in Microscopic Heat Engines
• Optimizations of Multilevel Quantum Heat Engine with N Noninteracting Fermions Based on Lenoir Cycle
• Relation between fluctuations and efficiency at maximum power for small heat engines