6 citations
- Institute for Research in Fundamental SciencesIR10 papers
- Kharazmi UniversityIR3 papers
- Persian Gulf UniversityIR3 papers
- AGH University of KrakowPL2 papers
- Shahid Beheshti UniversityIR2 papers
- University of Science and Technology of MazandaranIR2 papers
- Al-Farabi Kazakh National UniversityKZ1 paper
- Atomic Energy Organization of IranIR1 paper
- Ayatollah Boroujerdi UniversityIR1 paper
- Babol University of Medical SciencesIR1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Ferdowsi University of MashhadIR1 paper
6 papers · 1 filter
Testing loop quantum gravity by quasi-periodic oscillations: rotating blackholes
Jafar Khodagholizadeh, Ghadir Jafari, Alireza Allahyari +1
We investigate a compelling model of a rotating black hole that is deformed by the effects of loop quantum gravity (LQG). We present a simplified metric and explore two distinct ge…
CMB Polarization by the Asymmetric Template of Scalar Perturbations
Jafar Khodagholizadeh, Rohoollah Mohammadi, S. M. S. Movahed
Inspired by a dipole asymmetric template for the CMB temperature map in the primordial scalar fluctuations observed by Planck at a large scale, we examine the contribution of a sim…
Gravitational Waves with Dark Energy
J. Khodagholizadeh
In this article, we study the tensor mode equation of perturbation in the presence of nonzero-Lambda as dark energy, the dynamic nature of which depends on the Hubble parameter H a…
Neutrinos as a probe of curvature
Jafar Khodagholizadeh
Neutrinos, as the anisotropic stress tensor, have a damping effect on the tensor mode perturbation from inflation to the dominated era. First, we study the squared amplitude r…
Gravitational Waves in a Closed Spacetime via Deviation Equation
Jafar Khodagholizadeh, Amir H. Abbassi, Ali Vahedi +1
Within the closed universe, we obtain the amplitude and frequency of gravitational waves in the terms of discrete wave numbers, wave propagation time, and cosmological constant usi…
Aschenbach effect for spinning particles in Kerr-(A)dS spacetime
Ali Vahedi, Jafar Khodagholizadeh, Arman Tursunov
A non-monotonic behavior of the velocity gradient of a test particle revolving around a rapidly rotating black hole in the locally non-rotating frame of reference is known as the A…