# Speeding-up a quantum refrigerator via counter-diabatic driving

## TL;DR

This paper demonstrates that counter-diabatic driving can enhance the efficiency and power of a quantum Otto refrigerator, even in open system dynamics, with potential experimental applications.

## Contribution

It extends the application of counter-diabatic driving to open quantum systems, showing improvements in thermodynamic performance of a quantum refrigerator.

## Key findings

- CD improves efficiency and power in quantum refrigerator
- Effective in open system dynamics despite basis deviations
- Potential for experimental realization

## Abstract

We study the application of a counter-diabatic driving (CD) technique to enhance the thermodynamic efficiency and power of a quantum Otto refrigerator based on a superconducting qubit coupled to two resonant circuits. Although the CD technique is originally designed to counteract non-adiabatic coherent excitations in isolated systems, we find that it also works effectively in the open system dynamics, improving the coherence-induced losses of efficiency and power. We compare the CD dynamics with its classical counterpart, and find a deviation that arises because the CD is designed to follow the energy eigenbasis of the original Hamiltonian, but the heat baths thermalize the system in a different basis. We also discuss possible experimental realizations of our model.