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Photon heat transport in low-dimensional nanostructures | | Teemu Ojanen
; Tero T. Heikkila
; | | Date: |
15 Jan 2007 | | Subject: | Mesoscopic Systems and Quantum Hall Effect; Statistical Mechanics | | Abstract: | At low temperatures when the phonon modes are effectively frozen, photon transport is the dominating mechanism of thermal relaxation in metallic systems. Starting from a microscopic many-body Hamiltonian, we develop a nonequilibrium Green’s function method to study energy transport by photons in nanostructures. A formally exact expression for the energy current between a metallic island and a one-dimensional electromagnetic field is obtained. From this expression we derive the quantized thermal conductance as well as show how the results can be generalized to nonequilibrium situations. Generally, the frequency-dependent current noise of the island electrons determines the energy transfer rate. | | Source: | arXiv, cond-mat/0701334 | | Services: | Forum | Review | PDF | Favorites | |
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