244 citations
- Islamic Azad University, TehranIR15 papers
- University of KurdistanIR9 papers
- Islamic Azad University Central Tehran BranchIR8 papers
- Islamic Azad University of KermanshahIR7 papers
- Islamic Azad University, Science and Research BranchIR7 papers
- Islamic Azad University KermanIR5 papers
- Laboratoire AstroParticule et CosmologieFR5 papers
- Atomic Energy Organization of IranIR4 papers
- Centre National de la Recherche ScientifiqueFR4 papers
- Institute for Research in Fundamental SciencesIR4 papers
- Laboratoire de Physique Théorique de la Matière CondenséeFR4 papers
- Leibniz University HannoverDE4 papers
4 papers · 2 filters
Scalar effective action in Krein space quantization
A. Refaei, M V. Takook
In this paper, the λϕ^4 scalar feld effective action, in the one-loop approximation, is calculated by using the Krein space quantization. We show that the effective action is natur…
QED effective action in Krein space quantization
A. Refaei, M. V. Takook
The one-loop effective action of QED is calculated by the Schwinger method in Krein space quantization. We show that the effective action is naturally fnite and regularized. It als…
Observable Quantities in Weyl Gravity
Mohammad Reza Tanhayi, Mohsen Fathi, Mohammad Vahid Takook
In this paper, the cosmological "constant" and the Hubble parameter are considered in the Weyl theory of gravity, by taking them as functions of and , respectively. Based on…
Auxiliary "massless" spin-2 field in de Sitter universe
H. Pejhan, M. R. Tanhayi, M. V. Takook
For the tensor field of rank-2 there are two unitary irreducible representation (UIR) in de Sitter (dS) space denoted by and [1]. In the flat limit…