61 citations · 116 across the 3 of their papers we have counts for
3 papers
de Sitter Space as a Glauber-Sudarshan State
Suddhasattwa Brahma, Keshav Dasgupta, Radu Tatar
Glauber-Sudarshan states, sometimes simply referred to as Glauber states, or alternatively as coherent and squeezed-coherent states, are interesting states in the configuration spa…
Hypersurface-deformation algebroids and effective space-time models
Martin Bojowald, Suddhasattwa Brahma, Umut Buyukcam +1
In canonical gravity, covariance is implemented by brackets of hypersurface-deformation generators forming a Lie algebroid. Lie algebroid morphisms therefore allow one to relate di…
Cosmic variance in inflation with two light scalars
Béatrice Bonga, Suddhasattwa Brahma, Anne-Sylvie Deutsch +1
We examine the squeezed limit of the bispectrum when a light scalar with arbitrary non-derivative self-interactions is coupled to the inflaton. We find that when the hidden sector…