# Non-Markov Enhancement of Maximum Power for Quantum Thermal Machines

## TL;DR

This paper investigates how non-Markovian dynamics can enhance the maximum power output of quantum thermal engines, showing that reservoir correlations can be exploited for improved control and performance.

## Contribution

It introduces a model incorporating reservoir correlations via Hamiltonian coupling and demonstrates how non-Markovian effects can accelerate control and boost power output.

## Key findings

- Non-Markovianity can accelerate control processes.
- Reservoir correlations improve engine power.
- Enhanced performance in Carnot and Otto cycles.

## Abstract

In this work we study how the non-Markovian character of the dynamics can affect the thermodynamic performance of a quantum thermal engine, by analysing the maximum power output of Carnot and Otto cycles departing from the quasi-static and infinite-time-thermalization regime respectively, introducing techniques for their control optimization in general dynamical models. In our model, non-Markovianity is introduced by allowing some degrees of freedom of the reservoirs to be taken into account explicitly and share correlations with the engine by Hamiltonian coupling. It is found that the non-Markovian effects can fasten the control and improve the power output.