Power Fluctuations of An Irreversible Quantum Otto Engine
arXiv:2012.10621 · doi:10.1103/PhysRevE.103.032130
Abstract
We derive the general probability distribution function of stochastic work for quantum Otto engines in which both the isochoric and driving processes are irreversible due to finite time duration. The time-dependent power fluctuations, average power, and thermodynamic efficiency are explicitly obtained for a complete cycle operating with an analytically solvable two-level system. We show that, there is a trade-off between efficiency (or power) and power fluctuations.
References in corpus (14)
- Fluctuation theorems: Work is not an observable
- Single ion heat engine with maximum efficiency at maximum power
- Nonequilibrium fluctuations in quantum heat engines: Theory, example, and possible solid state experiments
- Quantum Heat Engine With Multi-Level Quantum Systems
- Irreversible work and inner friction in quantum thermodynamic processes
- Efficiency statistics at all times: Carnot limit at finite power
- Using a quantum work meter to test non-equilibrium fluctuation theorems
- Exactly solvable model of stochastic heat engine: Optimization of power, its fluctuations and efficiency
- Quantum Otto cycle with inner friction: finite-time and disorder effects
- Heat-exchange statistics in driven open quantum systems
- Work and its fluctuations in a driven quantum system
- Efficiency at maximum power of a quantum Otto engine: Both within finite-time and irreversible thermodynamics
- Finite-time quantum Otto engine: Surpassing the quasi-static efficiency due to friction
- Computing characteristic functions of quantum work in phase space