Optimal quantum refrigeration in strained graphene

TL;DR

This paper demonstrates that strained graphene can be used to design an efficient quantum refrigerator with high performance, analyzing optimal operating conditions and the effects of strain and temperature on cooling.

Contribution

It introduces a novel application of strained graphene as a quantum refrigerator, highlighting its high efficiency and large cooling power.

Findings

Optimal operating point for strained graphene refrigerator derived

Strain enhances cooling performance

Temperature influences cooling efficiency

Abstract

Refrigerators soak up heat energy from a low-temperature region and dump it into a higher temperature region using external work done on the system. Refrigerators are useful in cooling down a system to very low temperatures. In this letter, we show that a monolayer of strained graphene can be used in designing a quantum refrigerator with an excellent coefficient of performance and large cooling power. The operating point at which the strained graphene device works best as a quantum refrigerator is derived and the effects of strain and temperature on cooling are discussed.