Volume 118, Number 2, April 2017
|Number of page(s)||5|
|Section||Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics|
|Published online||19 June 2017|
Capacitor physics in ultra-near-field heat transfer
Department of Physics, National University of Singapore - Singapore 117551, Republic of Singapore
Received: 2 February 2017
Accepted: 29 May 2017
Using the nonequilibrium Green's function (NEGF) formalism, we propose a microscopic theory for near-field radiative heat transfer between charged metal plates focusing on the Coulomb interactions. Tight-binding models for the electrons are coupled to the electric-field continuum through a scalar potential. For a two–quantum-dot model a new length scale emerges below which the heat current exhibits great enhancement. This length scale is related to the physics of parallel plate capacitors. At long distances d, the energy flux decreases as .
PACS: 44.40.+a – Thermal radiation / 05.60.Gg – Quantum transport
© EPLA, 2017
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