期刊
PHYSICAL REVIEW LETTERS
卷 125, 期 16, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.125.166802
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资金
- JST CREST [JPMJCR1871]
- MEXT Q-LEAP [JPMXS0118069228]
- JSPS KAKENHI [15H04000, 17H01276]
- NTT Research
- Army Research Office (ARO) [W911NF-18-1-0358]
- Japan Science and Technology Agency (JST) (Q-LEAP)
- Japan Science and Technology Agency (JST) (CREST Grant) [JPMJCR1676]
- Japan Society for the Promotion of Science (JSPS) (KAKENHI) [JP20H00134]
- Japan Society for the Promotion of Science (JSPS) (JSPS-RFBR Grant) [JPJSBP120194828]
- Foundational Questions Institute Fund (FQXi) of the Silicon Valley Community Foundation [FQXi-IAF19-06]
- Army Research Office [W911NF-20-1-0261]
- Grants-in-Aid for Scientific Research [17H01276, 15H04000] Funding Source: KAKEN
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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