Fluctuations in heat engines

V Holubec, A Ryabov - Journal of Physics A: Mathematical and …, 2021 - iopscience.iop.org
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 …

Beyond linear response: Equivalence between thermodynamic geometry and optimal transport

A Zhong, MR DeWeese - Physical Review Letters, 2024 - APS
A fundamental result of thermodynamic geometry is that the optimal, minimal-work protocol
that drives a nonequilibrium system between two thermodynamic states in the slow-driving …

Active Brownian heat engines

V Holubec, S Steffenoni, G Falasco, K Kroy - Physical Review Research, 2020 - APS
When do nonequilibrium forms of disordered energy qualify as heat? We address this
question in the context of cyclically operating heat engines feeding on nonequilibrium …

Thermodynamic uncertainty relation bounds the extent of anomalous diffusion

D Hartich, A Godec - Physical review letters, 2021 - APS
In a finite system driven out of equilibrium by a constant external force the thermodynamic
uncertainty relation (TUR) bounds the variance of the conjugate current variable by the …

Thermodynamic uncertainty relation for first-passage times on Markov chains

A Pal, S Reuveni, S Rahav - Physical Review Research, 2021 - APS
We derive a thermodynamic uncertainty relation (TUR) for first-passage times (FPTs) on
continuous time Markov chains. The TUR utilizes the entropy production coming from …

Limited-control optimal protocols arbitrarily far from equilibrium

A Zhong, MR DeWeese - Physical Review E, 2022 - APS
Recent studies have explored finite-time dissipation-minimizing protocols for stochastic
thermodynamic systems driven arbitrarily far from equilibrium, when granted full external …

Lemon: Learning to learn multi-operator networks

J Sun, Z Zhang, H Schaeffer - ar** despite a clear timescale separation
D Hartich, A Godec - Physical Review Research, 2023 - APS
Integrating out fast degrees of freedom is known to yield, to a good approximation, memory-
less, ie, Markovian, dynamics. In the presence of such a timescale separation local detailed …