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Full-sky bispectrum in redshift space for 21cm intensity maps
(IOP Publishing, 2020)
We compute the tree-level bispectrum of 21cm intensity mapping after reionisation. We work in directly observable angular and redshift space, focusing on equal-redshift
correlations and thin redshift bins, for which the ...
Torsion driven inflationary magnetogenesis
(American Physical Society, 2020)
We show that the breaking of the conformal invariance of the electromagnetic Lagrangian, which is required for inflationary magnetogenesis, arises naturally in the Poincaré gauge theory. We use the minimal coupling ...
Superhorizon Perturbations: A Possible Explanation of the Hubble–Lemaître Tension and the Large-scale Anisotropy of the Universe.
(The American Astronomical Society., 2022)
Current cosmological observations point to a serious discrepancy between the observed Hubble parameter obtained
using direct versus cosmic microwave background radiation measurements. Besides this so-called Hubble–
Lemaître ...
Superhorizon perturbations: A possible explanation of the hubble–lemaître tension and the large-scale anisotropy of the universe
(IOP Publishing, 2022)
Current cosmological observations point to a serious discrepancy between the observed Hubble parameter obtained
using direct versus cosmic microwave background radiation measurements. Besides this so-called Hubble–
Lemaî
tre ...
F+ center exchange mechanism and magnetocrystalline anisotropy in Ni-doped 3C-SiC
(Elsivier, 2022)
Towards the development of a magnetic semiconductor suitable for spintronic device applications in extreme environments, we explored the possibility of inducing
magnetic interaction in SiC by doping Nickel. The X-ray ...
Probing Cosmology beyond ΛCDM using the SKA
(Indian Academy of Sciences, 2023)
The cosmological principle states that the Universe is statistically homogeneous and isotropic at
large distance scales. Currently, there exist many observations which indicate a departure from this principle.
It has ...