Philippe Ben-Abdallah Many-body radiative heat transfer theory

Author(s): Philippe Ben-Abdallah, Svend-Age Biehs, Karl Joulain

Many-body radiative heat transfer theory

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Article: Phys. Rev. Lett. 107, 114301 (2011), American Physical Society

Keywords: many body, near-field, radiative heat transfer

PACS: 44.40.+a, 78.20.-e, 03.50.De

In this Letter a $N$-body theory for the radiative heat exchange in thermally non equilibrated discrete systems of finite size objects is presented. We report strong exaltation effects of heat flux which can be explained only by taking into account the presence of many body interactions. Our theory extends the standard Polder and van Hove stochastic formalism used to evaluate heat exchanges between two objects isolated from their environment to a collection of objects in mutual interaction. It gives a natural theoretical framework to investigate the photon heat transport properties of complex systems at mesoscopic scale.

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