Non-thermal quantum engine in transmon qubits

TL;DR

This paper proposes a realistic quantum engine using transmon qubits, analyzing its dynamics and efficiency to advance understanding of quantum thermodynamics in experimental settings.

Contribution

It introduces a new quantum engine model based on transmon qubits and provides analytical solutions for its dynamics and efficiency.

Findings

Analytical solution of the engine's dynamics

Calculation of the engine's efficiency

Experimental feasibility of the proposed quantum engine

Abstract

The design and implementation of quantum technologies necessitates the understanding of thermodynamic processes in the quantum domain. In stark contrast to macroscopic thermodynamics, at the quantum scale processes generically operate far from equilibrium and are governed by fluctuations. Thus, experimental insight and empirical findings are indispensable in developing a comprehensive framework. To this end, we theoretically propose an experimentally realistic quantum engine that uses transmon qubits as working substance. We solve the dynamics analytically and calculate its efficiency.