5 citations · 8 across the 2 of their papers we have counts for
8 papers · 1 filter
Bubble needs strings
Souvik Banerjee, Ulf Danielsson, Suvendu Giri
In this paper, we want to emphasize the pivotal role played by strings in the model realizing de Sitter using an expanding bubble, proposed and subsequently developed in arXiv:1807…
Dark bubbles: decorating the wall
Souvik Banerjee, Ulf Danielsson, Suvendu Giri
Motivated by the difficulty of constructing de Sitter vacua in string theory, a new approach was proposed in arXiv:1807.01570 and arXiv:1907.04268, where four dimensional de Sitter…
de Sitter Cosmology on an expanding bubble
Souvik Banerjee, Ulf Danielsson, Giuseppe Dibitetto +2
Constructing an explicit compactification yielding a metastable de Sitter (dS) vacuum in a UV consistent string theory is an incredibly difficult open problem. Motivated by this is…
Quenched coupling, entangled equilibria, and correlated composite operators: a tale of two O(N) models
Souvik Banerjee, Julius Engelsöy, Jorge Larana-Aragon +3
A macroscopic version of Einstein-Podolsky-Rosen entanglement is obtained by quenching a quadratic coupling between two O(N) vector models. A quench of the mixed vacuum produces an…
A Bound on Thermal Relativistic Correlators at Large Spacelike Momenta
Souvik Banerjee, Kyriakos Papadodimas, Suvrat Raju +2
We consider thermal Wightman correlators in a relativistic quantum field theory in the limit where the spatial momenta of the insertions become large while their frequencies stay f…
Emergent de Sitter Cosmology from Decaying AdS
Souvik Banerjee, Ulf Danielsson, Giuseppe Dibitetto +2
Recent developments in string compactifications demonstrate obstructions to the simplest constructions of low energy cosmologies with positive vacuum energy. The existence of obsta…