Analog of a Quantum Heat Engine Using a Single-Spin Qubit

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Analog of a Quantum Heat Engine Using a Single-Spin Qubit

K. Ono, S. N. Shevchenko, T. Mori, S. Moriyama, and Franco Nori

Phys. Rev. Lett. 125, 166802 – Published 15 October 2020

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.

Received 18 December 2019
Accepted 15 September 2020

DOI:https://doi.org/10.1103/PhysRevLett.125.166802

Physics Subject Headings (PhySH)

Coherent control Landau-Zener effect Mesoscopics Quantum interference effects Quantum master equation Quantum transport Spin blockade

Double quantum dots Field-effect transistors Heat engines

Condensed Matter, Materials & Applied PhysicsAtomic, Molecular & Optical

Authors & Affiliations

K. Ono^1,2,*, S. N. Shevchenko ^3,4,5,†, T. Mori⁶, S. Moriyama ⁷, and Franco Nori ^5,8,‡

¹Advanced Device Laboratory, RIKEN, Wako-shi, Saitama 351-0198, Japan
²CEMS, RIKEN, Wako-shi, Saitama 351-0198, Japan
³B. Verkin Institute for Low Temperature Physics and Engineering, Kharkov 61103, Ukraine
⁴V. N. Karazin Kharkiv National University, Kharkov 61022, Ukraine
⁵Theoretical Quantum Physics Laboratory, Cluster for Pioneering Research, RIKEN, Wako-shi, Saitama 351-0198, Japan
⁶Device Technology Research Institute (D-Tech), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Ibaraki 305-8568, Japan
⁷Department of Electrical and Electronic Engineering, Tokyo Denki University, Adachi-ku, Tokyo 120-8551, Japan
⁸Department of Physics, The University of Michigan, Ann Arbor, Michigan 48109-1040, USA

^*k-ono@riken.jp
^†sshevchenko@ilt.kharkov.ua
^‡fnori@riken.jp

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Issue

Vol. 125, Iss. 16 — 16 October 2020

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