Circuit approach to photonic heat transport

Laëtitia Pascal (1) , Hervé Courtois (1) , Frank. W. J. Hekking (2)

1 NEEL - QuNES - Nano-Electronique Quantique et Spectroscopie
2 LPM2C - Laboratoire de physique et modélisation des milieux condensés

We discuss the heat transfer by photons between two metals coupled by a linear element with a reactive impedance. Using a simple circuit approach, we calculate the spectral power transmitted from one resistor to the other and find that it is determined by the photon transmission coefficient, which depends on the impedances of the metals and the coupling element. We study the total photonic power flow for different coupling impedances, both in the linear regime, where the temperature difference between the metals is small, and in the non-linear regime of large temperature differences.

Domaines: Autre [cond-mat.other]

Laëtitia Pascal, Hervé Courtois, Frank. W. J. Hekking. Circuit approach to photonic heat transport. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2011, 83 (12), pp.125113. ⟨10.1103/PhysRevB.83.125113⟩. ⟨hal-00520909⟩