Author pages are created from data sourced from our academic publisher partnerships and public sources.

Publications Influence

Gupta-Bleuler quantization for minimally coupled scalar fields in de Sitter space

We present a fully covariant quantization of the minimally coupled massless field on de Sitter space, thanks to a new representation of the canonical commutation relations. We thus obtain a formalism… Expand

121 3- PDF

Dirac fields and thermal effects in the de Sitter universe

- P. Bartesaghi, J. Gazeau, U. Moschella, M. Takook
- Physics
- 7 November 2001

We present a study of Dirac quantum fields in a four-dimensional de Sitter spacetime. The theory is based on the requirement of precise analyticity properties of the waves and the correlation… Expand

46 3

“Massive” spin-2 field in de Sitter space

In this paper we present a covariant quantization of the “massive” spin-2 field on de Sitter (dS) space. By “massive” we mean a field which carries a specific principal series representation of the… Expand

59 2- PDF

Thermodynamics of nonlinearly charged black holes in the Brans–Dicke modified gravity theory

- J. Pakravan, M. Takook
- Physics
- 6 August 2018

In this work, the charged black hole solution to the Brans–Dicke gravity theory in the presence of the nonlinear electrodynamics has been investigated. To simplify the field equations, a conformal… Expand

5 1

Spin 1/2 Field Theory in the de Sitter space-time

- M. Takook
- Physics
- 17 May 2000

A covariant quantization of the free spinor fields (s=1/2) in 4-dimensional de Sitter (dS) space-time based on analyticity in the complexified pseudo-Riemanian manifold is presented. We define the… Expand

5 1- PDF

Gravitational Wave Detection by Bounded Cold Electronic Plasma in a Long Pipe

- O. Jalili, S. Rouhani, M. Takook
- Physics
- 2009

We intend to propose an experimental sketch to detect gravitational waves (GW) directly, using an cold electronic plasma in a long pipe. By considering an cold electronic plasma in a long pipe, the… Expand

2 1

ABELIAN GAUGE THEORY IN DE SITTER SPACE

- S. Rouhani, M. Takook
- Physics
- 5 February 2005

Quantization of spinor and vector free fields in four-dimensional de Sitter spacetime, in the ambient space notation, has been studied in the previous works. Various two-point functions for the above… Expand

12 1- PDF

Conformally invariant wave equations and massless fields in de Sitter spacetime

- Samad Behroozi, S. Rouhani, M. Takook, M. Tanhayi
- Physics
- 19 December 2005

Conformally invariant wave equations in de Sitter space, for scalar and vector fields, are introduced in the present paper. Solutions of their wave equations and the related two-point functions, in… Expand

43 1- PDF

N=1 de Sitter supersymmetry algebra

- A. Pahlavan, S. Rouhani, M. Takook
- Physics
- 19 June 2005

Abstract Recalling the universal covering group of de Sitter universe, the transformation properties of the spinor fields ψ ( x ) and ψ ¯ ( x ) , in the ambient space notation, are presented in this… Expand

9- PDF

Spectrum of Scalar Curvature Perturbations in Krein Space Quantization

- A. Sojasi, M. Mohsenzadeh, M. Takook, E. Yusofi
- Mathematics
- 21 July 2010

The main goal of this paper is to derive the primordial power spectrum for the scalar perturbations generated as a result of quantum fluctuations during an inflationary period by an alternative… Expand

1