3 papers
hep-th2020
A Large- Phase Transition in a Finite Lattice Gauge Theory
Nirmalya Brahma, Chethan Krishnan
We consider gauge theories of non-Abelian groups, and discuss the 1+1 dimensional lattice gauge theory of the permutation group as an illustrative example. The parti…
hep-th2020
Analytical Computation of Cosmological Correlators from Symmetries and Singularities
Nirmalya Brahma
Cosmological correlators are very important objects in cosmology as they offer us a huge amount of information of the early universe. They reside on the future boundary of a de Sit…
astro-ph.CO2020
Energy injection in pre-recombination era and EDGES detection
Nirmalya Brahma, Shiv Sethi, Shivnag Sista
We study the possibility of explaining the recent EDGES detection by an energy injection in the pre-recombination era. Our aim is to show that the residue of this energy injection…