Accurately heat flow distribution based on a triple quantum dot

TL;DR

This paper proposes a theoretical setup using a triple quantum dot system to precisely control and spatially separate heat flows along two channels with adjustable ratios, applicable in various parameter regimes.

Contribution

It introduces a simple, tunable quantum dot configuration that can allocate heat flows with arbitrary ratios, advancing heat management at the quantum level.

Findings

Constant heat flow ratio achievable over wide parameters

Any ratio of heat flow can be obtained by tuning tunneling rates

The setup works for both integer and fractional ratios

Abstract

We theoretically propose a simple setup based on a three terminal triple quantum dot in the Coulomb blockade regime as a heat flow allocator to spatially separate heat flows along two different channels at arbitrary proportion. We show that a constant output heat flow ratio can be obtained in a wide range of system parameters and any ratio of the output heat flow, whether it is an integer ratio or a fractional ratio, can be obtained by directly adjusting the ratio of the energy-dependent tunneling rate.