Cooling by heating in the quantum optics domain

TL;DR

This paper investigates a class of feasible Hamiltonians in quantum optics that demonstrate the counterintuitive phenomenon of cooling by heating in fermionic and bosonic systems, showing it is experimentally achievable with current technology.

Contribution

The study identifies parameter ranges and experimental conditions under which cooling by heating occurs in quantum optical systems, expanding understanding of this phenomenon.

Findings

Cooling by heating observed in fermionic and bosonic systems

Feasible with current trapped-ion and cavity QED technology

Numerical analysis confirms experimental viability

Abstract

A class of Hamiltonians that are experimentally feasible in several contexts within quantum optics and lead to so-called cooling by heating for fermionic as well as for bosonic systems has been analyzed numerically. We have found a large range of parameters for which cooling by heating can be observed either for the fermionic system alone or for the combined fermionic and bosonic systems. Analyzing the experimental requirements, we conclude that cooling by heating is achievable with present-day technology, especially in the context of trapped-ion and cavity QED, thus contributing to the understanding of this interesting and counterintuitive effect.