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Ehsan Bavarsad

Ehsan Bavarsad

Assistant Professor

College: faculty of Physics

Department: Elementary Particles and Field Theory Physics

Degree: Ph.D

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Ehsan Bavarsad

Assistant Professor Ehsan Bavarsad

College: faculty of Physics - Department: Elementary Particles and Field Theory Physics Degree: Ph.D |

Adiabatic subtraction regularization of massless fermionic current in 3D de Sitter spacetime

AuthorsEhsan Bavarsad-Manizheh Botshekananfard
Conference TitleIranian Conference on Mathematical Physics (ICMP) 2017
Holding Date of Conference2017-12-28
Event PlaceQom-Iran
Presented byUniversity of Kashan
Page number59-62
PresentationPOSTER
Conference LevelNational Conferences

Abstract

In this paper, we consider a massless fermion field in a uniform electric field background in a 3 dimensional de Sitter spacetime. We obtain the in-vacuum expectation value of the current operator. Appling the adiabatic subtraction regularization scheme, we show that the linear ultraviolet divergence is removed and a finite expression obtain.

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