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Analytic behavior of the QED polarizability function at finite temperature

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Analytic behavior of the QED polarizability function at finite temperature

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dc.contributor.author Bernal Serrano, Antonio
dc.contributor.author Pérez Cañellas, Armando
dc.date.accessioned 2015-04-10T06:25:55Z
dc.date.available 2015-04-10T06:25:55Z
dc.date.issued 2012
dc.identifier.citation Bernal Serrano, Antonio Pérez Cañellas, Armando 2012 Analytic behavior of the QED polarizability function at finite temperature Aip Advances 2 1 012152
dc.identifier.uri http://hdl.handle.net/10550/42965
dc.description.abstract We revisit the analytical properties of the static quasi-photon polarizability function for an electron gas at finite temperature, in connection with the existence of Friedel oscillations in the potential created by an impurity. In contrast with the zero temperature case, where the polarizability is an analytical function, except for the two branch cuts which are responsible for Friedel oscillations, at finite temperature the corresponding function is not analytical, in spite of becoming continuous everywhere on the complex plane. This effect produces, as a result, the survival of the oscillatory behavior of the potential. We calculate the potential at large distances, and relate the calculation to the non-analytical properties of the polarizability.
dc.language.iso eng
dc.relation.ispartof Aip Advances, 2012, vol. 2, num. 1, p. 012152
dc.subject Física
dc.title Analytic behavior of the QED polarizability function at finite temperature
dc.type journal article es_ES
dc.date.updated 2015-04-10T06:25:55Z
dc.identifier.doi 10.1063/1.3690964
dc.identifier.idgrec 080207
dc.rights.accessRights open access es_ES

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