A minimal quantum heat pump based on high-frequency driving and non-Markovianity

TL;DR

This paper introduces a minimal quantum heat pump model utilizing high-frequency driving and non-Markovian effects, analyzed through advanced theoretical methods, demonstrating potential for efficient quantum thermal management.

Contribution

It presents a novel minimal quantum heat pump setup based on non-Markovian dynamics and high-frequency driving, analyzed with reaction-coordinate and Floquet-Born-Markov techniques.

Findings

Effective heat pumping demonstrated in the model

Non-Markovian effects enhance performance

Resonant coupling improves energy transfer

Abstract

We propose a minimal setup for a quantum heat pump, consisting of two tunnel-coupled quantum dots, each hosting a single level and each being coupled to a different fermionic reservoir. The working principle relies on both non-Markovian system-bath coupling and driving induced resonant coupling. We describe the system using a reaction-coordinate mapping in combination with Floquet-Born-Markov theory and characterize its performance.