63 citations · 217 across the 11 of their papers we have counts for
38 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…
BFSS Matrix Model Cosmology: Progress and Challenges
Suddhasattwa Brahma, Robert Brandenberger, Samuel Laliberte
We review a proposal to obtain an emergent metric space-time and an emergent early universe cosmology from the BFSS matrix model. Some challenges and directions for future research…
Quantum coherence of photons at cosmological distances
Arjun Berera, Suddhasattwa Brahma, Robert Brandenberger +2
We identify potential sources of decoherence for gauge bosons from a cosmological standpoint. Besides interactions with different species in the cosmological medium, we also…
The four-dimensional null energy condition as a swampland conjecture
Heliudson Bernardo, Suddhasattwa Brahma, Keshav Dasgupta +2
We analyze four-dimensional Friedmann-Lemaitre-Robertson-Walker cosmologies in type IIB, arising from a M-theory dual, and find that the null energy condition (NEC) has to be obeye…
Purely non-perturbative AdS vacua and the swampland
Heliudson Bernardo, Suddhasattwa Brahma, Keshav Dasgupta +1
In recent times, a considerable effort has been dedicated to identify certain conditions -- the so-called swampland conjectures -- with an eye on identifying effective theories whi…
Testing loop quantum gravity from observational consequences of non-singular rotating black holes
Suddhasattwa Brahma, Che-Yu Chen, Dong-han Yeom
The lack of rotating black hole models, which are typically found in nature, in loop quantum gravity (LQG) substantially hinders the progress of testing LQG from observations. Star…