On the ground state energy of a gas of interacting polarons in a magnetic field

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The ground-state energy of a three-dimensional polaron gas in a magnetic field is investigated. An upper bound for the ground-state energy is derived within a variational approach which is based on a many-body generalization of the Lee-Low-Pines transformation. The basic contributing ingredients found are the ground-state energy and the static structure factor of the homogeneous electron gas in a magnetic field. Both these quantities are derived in the Hartree-Fock approximation. The resulting ground-state energy of the polaron gas is analyzed as a function of the electron density and of the magnetic field strength.
10 pages, 3 figures

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Strongly Correlated Electrons

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http://salesiana.dossiersoluciones.com/handle/123456789/108276

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0602050
 http://arxiv.org/abs/cond-mat/0602050
 Solid State Communications 135, 108 (2005)
 doi:10.1016/j.ssc.2005.03.050

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arXiv