# Fluctuations in heat engines

@article{Holubec2021FluctuationsIH, title={Fluctuations in heat engines}, author={Viktor Holubec and Artem Ryabov}, journal={Journal of Physics A: Mathematical and Theoretical}, year={2021}, volume={55} }

At the dawn of thermodynamics, Carnot’s constraint on efficiency of heat engines stimulated the formulation of one of the most universal physical principles, the second law of thermodynamics. In recent years, the field of heat engines acquired a new twist due to enormous efforts to develop and describe microscopic machines based on systems as small as single atoms. At microscales, fluctuations are an inherent part of dynamics and thermodynamic variables such as work and heat fluctuate. Novel…

## 5 Citations

Finite-time thermodynamics of fluctuations in microscopic heat engines

- PhysicsPhysical Review Research
- 2022

Fluctuations of thermodynamic quantities become non-negligible and play an important role when the system size is small. We develop finite-time thermodynamics of fluctuations in microscopic heat…

Quantum thermodynamic devices: From theoretical proposals to experimental reality

- PhysicsAVS Quantum Science
- 2022

Thermodynamics originated in the need to understand novel technologies developed by the Industrial Revolution. However, over the centuries, the description of engines, refrigerators, thermal…

Bounds on fluctuations for machines with broken time-reversal symmetry: A linear response study

- MathematicsPhysical Review E
- 2022

For a generic class of machines with broken time-reversal symmetry we show that in the linear response regime the relative fluctuation of the sum of output currents for time-forward and time-reversed…

Non-Markovian thermal operations boosting the performance of quantum heat engines

- Engineering, Physics
- 2022

It is investigated whether non-Markovianity, i.e., the memory eﬀects resulting from the coupling of the system to its environment, can be beneﬁcial for the performance of quantum heat engines.…

Relation between fluctuations and efficiency at maximum power for small heat engines

- Mathematics
- 2022

We study the ratio between the variances of work output and heat input, η ( 2 ) , for a class of four-stroke heat engines which covers various typical cycles. Recent studies on the upper and lower…

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