Messanae Universitas Studiorum

The particle-photon interaction in systems descrided by model hamiltonians in second quantization

Savasta, Salvatore and Girlanda, Raffaello (1995) The particle-photon interaction in systems descrided by model hamiltonians in second quantization. Solid state communications, 96 (7). pp. 517-522. ISSN 0038-1098

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Abstract

A simple replacement rule which allows the direct formulation in second quantization of the particle-photon interaction Hamiltonian in the velocity gauge is presented. We show that a transformation of the creation and annihilation operators of the particle Hamiltonian gives the interaction Hamiltonian. The rule is valid for both local and nonlocal Hamiltonian and gives the correct expression of the photon self-interaction term A2 also when only a projection of the particle Hamiltonian is taken into account. As an example the replacement rule is applied to the exciton operators in order to derive the polariton Hamiltonian

Item Type: Article
Subjects: M.U.S. - Contributi Scientifici > 02 - Scienze fisiche
Depositing User: Stage ICCU
Date Deposited: 31 May 2005
Last Modified: 13 Apr 2010 09:39
URI: http://cab.unime.it/mus/id/eprint/329

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