61 citations · 162 across the 8 of their papers we have counts for
13 papers
Glauber-Sudarshan States, Wave Functional of the Universe and the Wheeler-De Witt equation
Suddhasattwa Brahma, Keshav Dasgupta, Fangyi Guo +1
One of the pertinent question in the analysis of de Sitter as an excited state is what happens to the Glauber-Sudarshan states that are off-shell, i.e. the states that do not satis…
Time-convolutionless cosmological master equations: Late-time resummations and decoherence for non-local kernels
Suddhasattwa Brahma, Jaime Calderón-Figueroa, Xiancong Luo
We revisit a simple toy model of two scalar fields in de Sitter space, playing the roles of "system" and "environment" degrees of freedom, which interact with each other. We show t…
Black holes in effective loop quantum gravity: Covariant holonomy modifications
Idrus Husin Belfaqih, Martin Bojowald, Suddhasattwa Brahma +1
Emergent modified gravity provides a covariant, effective framework for obtaining spherically symmetric black hole solutions in models of loop quantum gravity with scale-dependent…
Probing the curvature of the cosmos from quantum entanglement due to gravity
Suddhasattwa Brahma, Abhinove Nagarajan Seenivasan
If gravity is fundamentally quantum, any two quantum particles must get entangled with each other due to their mutual interaction through gravity. This phenomenon, dubbed gravity-m…
Gravity-induced entanglement as a probe of spacetime curvature
Suddhasattwa Brahma, Abhinove Nagarajan Seenivasan
It is now widely believed that if the gravitational field is (perturbatively) quantum, it would entangle two massive objects (in spatial superpositions) which were otherwise unenta…
IKKT thermodynamics and early universe cosmology
Samuel Laliberte, Suddhasattwa Brahma
Matrix theory is a proposed non-perturbative definition of superstring theory in which space is emergent. Recently, it was shown that space-time can emerge with a scale-invariant s…