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Scattering approach to near-field radiative heat transfer

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2025

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Basko, Denis M.

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https://doi.org/10.1103/xmmg-dv2d
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http://arxiv.org/abs/2411.04048

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Deutsche Forschungsgemeinschaft (DFG): SFB 1432, 425217212

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Physical Review B. American Physical Society (APS). 2025, 112(16), 165428. ISSN 0163-1829. eISSN 1095-3795. Verfügbar unter: doi: 10.1103/xmmg-dv2d

Zusammenfassung

We formulate the problem of near-field radiative heat transfer as an effective quantum scattering theory for excitations of the matter. Built from the same ingredients as the semiclassical fluctuational electrodynamics, the standard tool to handle this problem, our construction makes manifest its relation to the Landauer-Büttiker scattering framework, which appears only implicitly in the fluctuational electrodynamics. We show how to construct the scattering matrix for the matter excitations and give a general expression for the energy current in terms of this scattering matrix. We show that the energy current has an important nondissipative contribution that can dominate the finite-frequency noise while being absent in the average current. Our construction provides a unified description of near-field radiative heat transfer in diverse physical systems.

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530 Physik

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ISO 690HÜBLER, Matthias, Denis M. BASKO, Wolfgang BELZIG, 2025. Scattering approach to near-field radiative heat transfer. In: Physical Review B. American Physical Society (APS). 2025, 112(16), 165428. ISSN 0163-1829. eISSN 1095-3795. Verfügbar unter: doi: 10.1103/xmmg-dv2d
BibTex
@article{Hubler2025Scatt-71491.2,
  title={Scattering approach to near-field radiative heat transfer},
  year={2025},
  doi={10.1103/xmmg-dv2d},
  number={16},
  volume={112},
  issn={0163-1829},
  journal={Physical Review B},
  author={Hübler, Matthias and Basko, Denis M. and Belzig, Wolfgang},
  note={Article Number: 165428}
}
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