Schwinger mechanism in electromagnetic field in de Sitter spacetime

We investigate Schwinger scalar pair production in a constant electromagnetic field in de Sitter (dS) spacetime. We obtain the pair production rate, which agrees with the Hawking radiation in the limit of zero electric field in dS. The result describes how a cosmic magnetic field affects the pair pr...

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Bibliographic Details
Published inEPJ Web of Conferences Vol. 168; p. 3002
Main Authors Bavarsad, Ehsan, Pyo Kim, Sang, Stahl, Clément, Xue, She-Sheng
Format Journal Article Conference Proceeding
LanguageEnglish
Published Les Ulis EDP Sciences 01.01.2018
Subjects
Electric fields
Electromagnetic fields
Electromagnetism
Hawking radiation
Magnetic fields
Numerical methods
Pair production
Spacetime
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Summary:We investigate Schwinger scalar pair production in a constant electromagnetic field in de Sitter (dS) spacetime. We obtain the pair production rate, which agrees with the Hawking radiation in the limit of zero electric field in dS. The result describes how a cosmic magnetic field affects the pair production rate. In addition, using a numerical method we study the effect of the magnetic field on the induced current. We find that in the strong electromagnetic field the current has a linear response to the electric and magnetic fields, while in the infrared regime, is inversely proportional to the electric field and leads to infrared hyperconductivity.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201816803002