The semi-classical, quantum and EM process of photon emission by the H atom

Abstract: Light emitted from atoms during transitions of electrons from higher to lower discrete states has the form of photons carrying energy and angular momentum. The paper considers the process of emission of a single photon from the hydrogen atom by using quantum theory and Maxwell's equations. The electric and magnetic fields of a photon arise from the time-dependent quantum probability densities of the orbit and the spin current. This paper is an extension of the semi-classical description of photon emission published by the author earlier in 1999. In the semi-classical approach the Coulomb force and a radiation resistance force have been taken into account to get time dependent emission of the photon. In both the quantum and semi-classical cases the transition takes place within a time interval equal to one period of the photon's wave. The creation of a one-wavelength-long photon is supported by the results of experiments using ultra-fast (ultra-short) laser pulses to generate excited atoms, which emit light pulses shorter than two photon wavelengths.

mathematical physicsgeneral physicsquantum physics

Audience: researchers in the topic

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QM Foundations & Nature of Time seminar

Series comments: Description: Physics foundations discussion seminar

Current access link in th.if.uj.edu.pl/~dudaj/QMFNoT

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