93 citations · 166 across the 7 of their papers we have counts for
7 papers
A Prediction for DESI Full-Shape: Increasing Tomographic Trend
Eoin Ó Colgáin, M. M. Sheikh-Jabbari
To confirm CDM deviations are due to missing physics (not systematics), one should demonstrate that the model fitting parameters exhibit qualitatively similar redshift drift acr…
Redshift Dependence of Dipole in Pantheon+ Supernovae
M. H. Jalali-Kanafi, E. Ó Colgáin, S. Pourojaghi +1
We examine the dipole structure in the local cosmic expansion rate using the Pantheon+ compilation of Type Ia supernovae. We reconstruct directional maps of across the…
Do high redshift QSOs and GRBs corroborate JWST?
Eoin Ó Colgáin, M. M. Sheikh-Jabbari, Lu Yin
The James Webb Space Telescope (JWST) is reporting massive high redshift galaxies that appear challenging from the CDM perspective. Interpreted as a cosmological problem, this n…
Gravitational Waves from Preheating in M-flation
Amjad Ashoorioon, Brandon Fung, Robert B. Mann +2
Matrix inflation, or M-flation, is a string theory motivated inflationary model with three scalar field matrices and gauge fields in the adjoint representation of the $\mathbf{U}(N…
Reconciliation of High Energy Scale Models of Inflation with Planck
Amjad Ashoorioon, Konstantinos Dimopoulos, M. M. Sheikh-Jabbari +1
The inflationary cosmology paradigm is very successful in explaining the CMB anisotropy to the percent level. Besides the dependence on the inflationary model, the power spectra, s…
Tachyonic Resonance Preheating in Expanding Universe
Ali Akbar Abolhasani, Hassan Firouzjahi, M. M. Sheikh-Jabbari
In this paper the tachyonic resonance preheating generated from the bosonic trilinear interactions in an expanding Universe is studied. In inflationary model the tr…
Matrix Inflation and the Landscape of its Potential
Amjad Ashoorioon, Hassan Firouzjahi, Mohammmad Mahdi Sheikh-Jabbari
Recently we introduced an inflationary setup in which the inflaton fields are matrix valued scalar fields with a generic quartic potential, M-flation. In this work we study the lan…