78 citations · 333 across the 15 of their papers we have counts for
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gr-qc2023★ 26 cited
Shallow relic gravitational wave spectrum with acoustic peak
Ramkishor Sharma, Jani Dahl, Axel Brandenburg +1
We study the gravitational wave (GW) spectrum produced by acoustic waves in the early universe, such as would be produced by a first order phase transition, focusing on the low-fre…
gr-qc2017★ 40 cited
Multifaceted Schwinger effect in de Sitter space
Ramkishor Sharma, Suprit Singh
We investigate particle production à la Schwinger mechanism in an expanding, flat de Sitter patch as is relevant for the inflationary epoch of our universe. Defining states and par…