Analog of a quantum heat engine using a single-spin qubit
- URL: http://arxiv.org/abs/2008.10181v2
- Date: Mon, 14 Sep 2020 16:45:56 GMT
- Title: Analog of a quantum heat engine using a single-spin qubit
- Authors: K. Ono, S. N. Shevchenko, T. Mori, S. Moriyama, Franco Nori
- Abstract summary: 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.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- 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.
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