87 citations · 665 across the 33 of their papers we have counts for
10 papers · 1 filter
Vector disformal transformation of cosmological perturbations
Vassilis Papadopoulos, Moslem Zarei, Hassan Firouzjahi +1
We study disformal transformations of cosmological perturbations by vector fields in theories invariant under U(1) gauge transformations. Three types of vector disformal transforma…
A Non-minimally Coupled Potential for Inflation and Dark Energy after Planck 2015: A Comprehensive Study
Mehdi Eshaghi, Moslem Zarei, Nematollah Riazi +1
In this work we introduce a new plateau-like inflationary model including a quadratic scalar potential coupled non-minimally to gravity. This potential has a dominant constant ener…
Dipole Modulation in Tensor Modes: Signatures in CMB Polarization
Moslem Zarei
In this work we consider a dipole asymmetry in tensor modes and study the effects of this asymmetry on the angular power spectra of CMB. We derive analytical expressions for the $C…
Anisotropic Inflation with the non-Vacuum Initial State
Razieh Emami, Hassan Firouzjahi, Moslem Zarei
In this work we study models of anisotropic inflation with the generalized non-vacuum initial states for the inflaton field and the gauge field. The effects of non Bunch-Davies ini…
Generation of circular polarization of the CMB
E. Bavarsad, M. Haghighat, Z. Rezaei +3
According to the standard cosmology, near the last scattering surface, the photons scattered via Compton scattering are just linearly polarized and then the primordial circular pol…
Minimal Uncertainty in Momentum: The Effects of IR Gravity on Quantum Mechanics
Behrouz Mirza, Moslem Zarei
The effects of the IR aspects of gravity on quantum mechanics is investigated. At large distances where due to gravity the space-time is curved, there appears nonzero minimal uncer…
Short Distance Physics and Initial State Effects on the CMB Power Spectrum
Moslem Zarei
We investigate a modification in the action of inflaton due to noncommutativity leads to a nonstandard initial vacuum and oscillatory corrections in the initial power spectrum. We…
Aharonov-Casher effect for spin one particles in a noncommutative space
B. Mirza, R. Narimani, M. Zarei
In this work the Aharonov-Casher (AC) phase is calculated for spin one particles in a noncommutative space. The AC phase has previously been calculated from the Dirac equation in a…
Cancellation of soft and collinear divergences in noncommutative QED
B. Mirza, M. Zarei
In this paper, we investigate the behavior of non-commutative IR divergences and will also discuss their cancellation in the physical cross sections. The commutative IR (soft) dive…
Noncommutative quantum mechanics and the Aharonov-Casher effect
B. Mirza, M. Zarei
In this work a new method is developed to investigate the Aharonov-Casher effect in a noncommutative space. It is shown that the holonomy receives non-trivial kinematical correctio…