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- Islamic Azad University, Science and Research BranchIR89 papers
- Islamic Azad University Central Tehran BranchIR75 papers
- Institute for Research in Fundamental SciencesIR18 papers
- University of MazandaranIR17 papers
- University of TabrizIR16 papers
- Razi UniversityIR15 papers
- Islamic Azad University of Ayatollah AmoliIR14 papers
- Research Institute for Astronomy and Astrophysics of MaraghIR13 papers
- Islamic Azad University North Tehran BranchIR10 papers
- Sharif University of TechnologyIR10 papers
- University of GuilanIR10 papers
- Centre National de la Recherche ScientifiqueFR9 papers
9 papers · 1 filter
Standard Cosmological Evolution in f(R) Model to Kaluza Klein Cosmology
A. Aghmohammadi, Kh. Saaidi, M. R. Abolhassani +1
In this paper, using theory of gravity we explicitly calculate cosmological evolution in the presence of a perfect fluid source in four and five dimensional, space time in w…
Modification of Coulomb's law in closed spaces
Pouria Pedram
We obtain a modified version of Coulomb's law in two- and three-dimensional closed spaces. We demonstrate that in a closed space the total electric charge must be zero. We also dis…
Geometry of Distributions and Gordon equation
Mehdi Nadjafikhah, Reza Aghayan
In this paper we describe the geometry of distributions by their symmetries, and present a simplified proof of the Frobenius theorem and some related corollaries. Then, we study th…
Metamagnetic phase transition in the Ising plus Dzyaloshinskii-Moriya model
M. R. Soltani, S. Mahdavifar, Alireza Akbari +1
We study the 1D ferromagnetic Ising (spin-1/2) model with the Dzyaloshinskii-Moriya (DM) interaction. We analyze the low energy excitation spectrum and the ground state magnetic ph…
Comparison of Frames: Jordan vs Einstein Frame for a Non-minimal Dark Energy Model
Kourosh Nozari, S. Davood Sadatian
We construct a dark energy model where a scalar field non-minimally coupled to gravity plays the role of the dark component. We compare cosmological consequences of this non-minima…
Bouncing Universe with a Nonminimally Coupled Scalar Field on a Moving Domain Wall
Kourosh Nozari, S. Davood Sadatian
We study dynamics of a dark energy component nonminimally coupled to gravity on a moving domain wall. We use this setup to explain late-time accelerated expansion and crossing of t…