Photon heat transport in low-dimensional nanostructures
作者： Teemu Ojanen , Tero T. Heikkilä
DOI: 10.1103/PHYSREVB.76.073414
关键词: Hamiltonian (quantum mechanics) 、 Physics 、 Thermal conductivity 、 Thermal radiation 、 Energy current 、 Electron 、 Condensed matter physics 、 Phonon 、 Thermal conduction 、 Photon
摘要: At low temperatures when the phonon modes are effectively frozen, photon transport is dominating mechanism of thermal relaxation in metallic systems. Starting from a microscopic many-body Hamiltonian, we develop nonequilibrium Green's function method to study energy by photons nanostructures. A formally exact expression for current between island and one-dimensional electromagnetic field obtained. From this expression, derive quantized conductance as well show how results can be generalized situations. Generally, frequency-dependent noise electrons determines transfer rate.
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