Minimal Self-Contained Quantum Refrigeration Machine Based on Four Quantum Dots

TL;DR

This paper proposes a theoretical model of a minimal self-contained quantum refrigerator using four quantum dots arranged in a square, capable of extracting heat from a cold reservoir and cooling a nearby quantum dot.

Contribution

It introduces a novel minimal quantum refrigeration system based on four quantum dots, demonstrating its fundamental refrigeration mechanism.

Findings

System effectively extracts heat from cold reservoir

Achieves cooling of a quantum dot

Demonstrates basic quantum refrigeration principles

Abstract

We present a theoretical study of an electronic quantum refrigerator based on four quantum dots arranged in a square configuration, in contact with as many thermal reservoirs. We show that the system implements the basic minimal mechanism for acting as a self-contained quantum refrigerator, by demonstrating heat extraction from the coldest reservoir and the cooling of the nearby quantum-dot.