Cooling Quantum Gases with Entropy Localization

TL;DR

This paper introduces a novel cooling method for quantum gases by trapping entropy at the edges using disorder, demonstrated through entropy evolution analysis in a 1D Fermi lattice with a dynamic superlattice.

Contribution

The study proposes and analyzes a new entropy trapping cooling technique enabled by disorder in quantum gases, supported by theoretical modeling.

Findings

Disorder can localize entropy at the edges of atomic clouds.

The proposed cooling method is feasible in a 1D Fermi lattice system.

Entropy trapping can effectively reduce the system's temperature.

Abstract

We study the dynamics of entropy in a time dependent potential and explore how disorder influences this entropy flow. We show that disorder can trap entropy at the edge of the atomic cloud enabling a novel cooling method. We demonstrate the feasibility of our cooling technique by analyzing the evolution of entropy in a one-dimensional Fermi lattice gas with a time dependent superlattice potential.