期刊
JETP LETTERS
卷 92, 期 10, 页码 696-702出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0021364010220121
关键词
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资金
- Russian Ministry of Education and Science [P926]
- Council of the President of the Russian Federation for Support of Young Scientists and Leading Scientific Schools [MK-125.2009.2]
- Russian Foundation for Basic Research [09-02-92474-MNKS]
- Russian Academy of Sciences
We study admittance and energy dissipation in an out-of-equilibrium single electron box. The system consists of a small metallic island coupled to a massive reservoir via single tunneling junction. The potential of electrons in the island is controlled by an additional gate electrode. The energy dissipation is caused by an AC gate voltage. The case of a strong Coulomb blockade is considered. We focus on the regime when electron coherence can be neglected but quantum fluctuations of charge are strong due to Coulomb interaction. We obtain the admittance under the specified conditions. It turns out that the energy dissipation rate can be expressed via charge relaxation resistance and renormalized gate capacitance even out of equilibrium. We suggest the admittance as a tool for a measurement of the bosonic distribution corresponding collective excitations in the system.
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