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Publications Influence

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

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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

Exact analytical expression for magnetoresistance using quantum groups

- S. Alavi, S. Rouhani
- Physics
- 19 March 2003

Abstract We obtain an exact analytical expression for magnetoresistance using noncommutative geometry and quantum groups. Then we will show that there is a deep relationship between magnetoresistance… Expand

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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

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“Massless” vector field in de Sitter universe

- T. Garidi, J. Gazeau, S. Rouhani, M. Takook
- Physics
- 31 July 2006

We proceed to the quantization of the massless vector field in the de Sitter (dS) space. This work is the natural continuation of a previous article devoted to the quantization of the dS massive… Expand

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Quantum Gravity in Krein Space Quantization

- M. Takook, S. Rouhani
- Mathematics
- 29 August 2012

1

A Naturally Renormalized Quantum Field Theory

- S. Rouhani, M. Takook
- Physics
- 7 July 2006

It was shown that quantum metric fluctuations smear out the singularities of Green functions on the light cone (Ford, arXiv:gr-qc/9707062), but it does not remove other ultraviolet divergences of the… Expand

32- PDF

Erratum to: “Discrete symmetries for spinor field in de Sitter space” [Phys. Lett. B 613 (2005) 74]

- S. Rouhani, M. Takook
- Physics
- 2008

1

Conformal invariance wave equations in de Sitter space

- 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

1

Observational constraints and stability in viscous gravity

- T. Mirzaei-Rezaei, A. Amani, E. Yusofi, S. Rouhani, M. A. Ramzanpour
- Physics
- 2 December 2020

In this paper, we study the gravity model in the presence of bulk viscosity by the flat Friedmann–Robertson–Walker metric. The field equation is obtained by teleparallel gravity with a tetrad field...