We propose a quantum-enhanced heat engine with entanglement. The key feature of our scheme is superabsorption, which facilitates enhanced energy absorption by entangled qubits. Whereas a conventional engine with N separable qubits provides power with a scaling of P=Θ(N), our engine uses superabsorption to provide power with a quantum scaling of P=Θ(N2). This quantum heat engine also exhibits a scaling advantage over classical ones composed of N-particle Langevin systems. Our work elucidates the quantum properties allowing for the enhancement of performance.
@article{arxiv.2106.10813,
title = {Quantum-Enhanced Heat Engine Based on Superabsorption},
author = {S. Kamimura and H. Hakoshima and Y. Matsuzaki and K. Yoshida and Y. Tokura},
journal= {arXiv preprint arXiv:2106.10813},
year = {2022}
}