2013/07/31 by Angelo Bassi, Sandro Donadi · 25 citations
Computer Science · Physics and Astronomy · #Bounded function #Charged particle #Classical mechanics #Dipole #Discrete dipole approximation #Electromagnetic field #Electron #Noise (video) #Particle (ecology) #Photon #Physics #Quantum Electrodynamics and Casimir Effect #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum electrodynamics #Quantum mechanics #Relativistic particle #quant-ph
paper · pdf · doi:10.1016/j.physleta.2014.01.002
published in Physics Letters A 378(10), 761-765 (Elsevier BV) · 15 pages, LaTeX
openalex publication_date 2014/01/16 · arxiv created 2014/02/10 · arxiv updated 2015/06/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the photon emission rate of a non relativistic charged particle interacting with an external classical noise through its position. Both the particle and the electromagnetic field are quantized. Under only the dipole approximation, the equations of motion can be solved exactly for a free particle, or a particle bounded by an harmonic potential. The physical quantity we will be interested in is the spectrum of the radiation emitted by the particle, due to the interaction with the noise. We will highlight several properties of the spectrum and clarify some issues appeared in the literature, regarding the exact mathematical formula of a spectrum for a free particle.