Analog of a quantum heat engine using a single-spin qubit
Mesoscale and Nanoscale Physics
2020-10-21 v2 Quantum Physics
Abstract
A quantum two-level system with periodically modulated energy splitting could provide a minimal universal quantum heat machine. We present the experimental realization and the theoretical description of such a two-level system as an impurity electron spin in a silicon tunnel field-effect transistor. In the incoherent regime, the system can behave analogously to either an Otto heat engine or a refrigerator. The coherent regime could be described as a superposition of those two regimes, producing specific interference fringes in the observed source-drain current.
Cite
@article{arxiv.2008.10181,
title = {Analog of a quantum heat engine using a single-spin qubit},
author = {K. Ono and S. N. Shevchenko and T. Mori and S. Moriyama and Franco Nori},
journal= {arXiv preprint arXiv:2008.10181},
year = {2020}
}
Comments
6 pages + 17 pages of Supplemental Material