Fluctuations of the energy density and intensity for arbitrary objects in an arbitrary environment
arXiv:2305.09426 · doi:10.1103/PhysRevB.108.115430
Abstract
I apply the scattering approach within the framework of macroscopic quantum electrodynamics to derive the variances and mean values of the energy density and intensity for a system of an arbitrary object in an arbitrary environment. To evaluate the temporal bunching character of the energy density and intensity, I determine the ratio of their variances with respect to their mean values. I explicitly evaluate these ratios for the cases of vacuum, a half-space in vacuum, and a sphere in vacuum. Eventually, I extend the applicability of this theory to the case of more than one arbitrary object, independent of the geometrical shapes and materials.
arXiv comment22 pages, 6 figures
References in corpus (11)
- Scattering Theory Approach to Electrodynamic Casimir Forces
- Trace formulae for non-equilibrium Casimir interactions, heat radiation and heat transfer for arbitrary objects
- Spatial coherence of thermal near fields
- Exact microscopic theory of electromagnetic heat transfer between a dielectric sphere and plate
- Radiative heat transfer in many-body systems: coupled electric and magnetic dipole approach
- Linear response relations in fluctuational electrodynamics
- Green-Kubo relation for thermal radiation in non-reciprocal systems
- Fluctuations of the Casimir-Polder force between an atom and a conducting wall
- Fluctuations of radiative heat exchange between two bodies
- Signature of resonant modes in radiative heat current noise spectrum
- Dipole model for far-field thermal emission of a nanoparticle above a planar substrate