Electronic heat current fluctuations in a quantum dot
نویسندگان
چکیده
The fluctuations of the heat current in a quantum dot coupled to electron reservoirs are calculated at finite frequency, voltage, and temperature using nonequilibrium Green function technique. nonsymmetrized noise is expressed as an integral on energy containing four contributions, each which includes transmission amplitudes, electron-hole pair distribution functions, difference factors. effect asymmetry couplings between studied. Features highlighted discussed for equilibrium out-of-equilibrium dot. In latter case within high limit, closely related radiative power spectrum, leading Planck's law. Proposals measurement discussed.
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ژورنال
عنوان ژورنال: Physical review
سال: 2021
ISSN: ['0556-2813', '1538-4497', '1089-490X']
DOI: https://doi.org/10.1103/physrevb.103.045427