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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 11 — Nov. 1, 2011
  • pp: 2597–2604

Emission of real phonons due to electron’s self-dressing in a covalent crystal

Davide Valenti  »View Author Affiliations


JOSA B, Vol. 28, Issue 11, pp. 2597-2604 (2011)
http://dx.doi.org/10.1364/JOSAB.28.002597


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Abstract

A slow monoelectronic excitation in a covalent crystal at the temperature T = 0 is analyzed. The interaction with zero-point longitudinal acoustic phonons leads to the formation of a dressed electronic state at an energy level lower than that of the initial bare state. This aspect of the dressing process is described here by hypothesizing that the excess of energy is released with the emission of real phonons. Specifically, this paper considers the transition probability from the bare monoelectronic state to a dressed state of the electron accompanied by real phonons and a deformation field. The spectrum of the real phonons emitted during the electronic self-dressing is calculated by applying nonperturbative techniques based on the resolvent method. The present analysis indicates that the transition between the bare monoelectronic state and the asymptotic dressed state is accompanied, at the lowest order, by the appearance of two real phonons.

© 2011 Optical Society of America

OCIS Codes
(000.1600) General : Classical and quantum physics
(000.4930) General : Other topics of general interest
(000.6800) General : Theoretical physics
(320.2250) Ultrafast optics : Femtosecond phenomena

ToC Category:
Theoretical Concepts and Methods

History
Original Manuscript: May 25, 2011
Revised Manuscript: August 12, 2011
Manuscript Accepted: September 8, 2011
Published: October 5, 2011

Citation
Davide Valenti, "Emission of real phonons due to electron’s self-dressing in a covalent crystal," J. Opt. Soc. Am. B 28, 2597-2604 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-11-2597

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