On-Chip Quantum Refrigerators

On-Chip Quantum Refrigerators

Quantum thermodynamics deals with the study of the fundamental laws of thermodynamics at quantum scales, where quantum effects play a decisive role in energy flow and its conversion. In this field, quantum refrigerators replace classical systems, and heat exchange processes between different components occur through the flow of quasiparticles such as electrons, photons, and phonons, without the need for macroscopic mechanical parts. Recent advances in solid-state quantum technologies have increased interest in designing and controlling thermal currents in these systems, particularly at ultra-low temperatures. In this talk, we will first present a brief overview of the laws of thermodynamics in quantum systems. Then, we will introduce some implementations of quantum refrigerators in hybrid superconducting systems. Finally, as a practical application, we will discuss the potential use of these methods for cooling topological superconducting 0−π qubits.