| Authors | Ehsan Bavarsad-Manizheh Botshekananfard |
|---|---|
| Conference Title | 9th conference on particle physics and fields |
| Holding Date of Conference | 2019-02-13~14 |
| Event Place | Yazd-Iran |
| Presented by | University of Kashan |
| Page number | 51-54 |
| Presentation | SPEECH |
| Conference Level | National Conferences |
Abstract
In this paper, renormalization of the energy-momentum tensor in the 2D de Sitter QED is investigated. We show that the logarithmic ultraviolet divergence is removed and a finite expression has been obtained using adiabatic subtraction scheme. To obtain the tensor, we consider the renormalization condition at the conformal coupling point, and define the value of the renormalized trace equal to the conformal anomaly in the limit of the massless fermion and zero electromagnetic field.