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Author
Beltran-Palau, P.
;
Ferreiro, A.
;
Navarro-Salas, J.
;
Pla, S.
Title
Breaking of adiabatic invariance in the creation of particles by electromagnetic backgrounds
Type
Journal Article
Year
2019
Publication
Physical Review D
Abbreviated Journal
Phys. Rev. D
Volume
100
Issue
8
Pages
085014 - 12pp
Keywords
Abstract
Particles are spontaneously created from the vacuum by time-varying gravitational or electromagnetic backgrounds. It has been proven that the particle number operator in an expanding universe is an adiabatic invariant. In this paper we show that, in some special cases, the expected adiabatic invariance of the particle number fails in presence of electromagnetic backgrounds. In order to do this, we consider as a prototype a Sauter-type electric pulse. Furthermore, we also show a close relation between the breaking of the adiabatic invariance and the emergence of the axial anomaly.
Address
[Beltran-Palau, Pau; Ferreiro, Antonio; Navarro-Salas, Jose; Pla, Silvia] Univ Valencia, CSIC, Ctr Mixto, Fac Fis,Dept Fis Teor, E-46100 Valencia, Spain, Email: pau.beltran@uv.es;
Corporate Author
Thesis
Publisher
Amer Physical Soc
Place of Publication
Editor
Language
English
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
2470-0010
ISBN
Medium
Area
Expedition
Conference
Notes
WOS:000491467800009
Approved
no
Is ISI
yes
International Collaboration
no
Call Number
IFIC @ pastor @
Serial
4184
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