| Authors | Ehsan Bavarsad |
|---|---|
| Conference Title | 6th conference on particle physics and fields |
| Holding Date of Conference | 2016-01-20~21 |
| Event Place | Isfahan-Iran |
| Presented by | University of Kashan |
| Page number | 16-19 |
| Presentation | SPEECH |
| Conference Level | National Conferences |
Abstract
In this paper, canonical quantization of a charged scalar field in a constant background electric field has been considered in a (1+2)-dimensional de Sitter space-time. Then, we compute the in-vacuum expectation value of the space-like component of the current operator. Adiabatic subtraction method applied in order to renormalization of the current operator. In the case of massless scalar field, we find that renormalized current responses as 1/E to the background electric field.