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Dipoles in blackbody radiation: Momentum fluctuations, decoherence, and drag force

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arxiv 2204.11113 v1 pith:KYC4A3PE submitted 2022-04-23 quant-ph

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keywords blackbodyparticleradiationconstantdecoherencediffusiondipolesdrag
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A general expression is derived for the momentum diffusion constant of a small polarizable particle in blackbody radiation, and is shown to be closely related to the long-wavelength collisional decoherence rate for such a particle in a thermal environment. We show how this diffusion constant appears in the steady-state photon emission rate of two dipoles induced by blackbody radiation. We consider in addition the Einstein--Hopf drag force on a small polarizable particle moving in a blackbody field, and derive its fully relativistic form from the Lorentz transformation of forces.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Momentum Diffusion, Decoherence and Drag Force on a Magnetic Nanoparticle

    quant-ph 2026-02 conditional novelty 6.0 of 10

    The magnetic (diamagnetic) contribution to momentum diffusion, decoherence, and thermal drag of a levitated nanoparticle is derived and shown to be several orders of magnitude smaller than the dielectric contribution.

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