6 papers
Strong Cosmic Censorship in Two Dimensions
Upamanyu Moitra
We study the behaviour of a free massive scalar wave-packet near the Cauchy horizon of an black hole and find that it becomes infinitely differentiable for smooth…
Near-Extremal Fluid Mechanics
Upamanyu Moitra, Sunil Kumar Sake, Sandip P. Trivedi
We analyse near-extremal black brane configurations in asymptotically spacetime with the temperature , chemical potential , and three-velocity , varying…
Jackiw-Teitelboim Model Coupled to Conformal Matter in the Semi-Classical Limit
Upamanyu Moitra, Sunil Kumar Sake, Sandip P. Trivedi +1
We analyse the Jackiw-Teitelboim model of 2D gravity coupled to massless free scalar fields in the semi-classical limit. Two systems are studied which essentially differ in the…
Jackiw-Teitelboim Gravity and Rotating Black Holes
Upamanyu Moitra, Sunil Kumar Sake, Sandip P. Trivedi +1
We show that the free energy at low temperatures for near-extremal black holes is correctly obtained from the Jackiw-Teitelboim (JT) model of gravity. Our arguments apply to all bl…
Entanglement Entropy, Relative Entropy and Duality
Upamanyu Moitra, Ronak M Soni, Sandip P. Trivedi
A definition for the entanglement entropy in both Abelian and non-Abelian gauge theories has been given in the literature, based on an extended Hilbert space construction. The resu…
Extremal and Near-Extremal Black Holes and Near-
Upamanyu Moitra, Sandip P. Trivedi, V. Vishal
We study the behaviour of extremal and near-extremal black holes at low energies and low temperatures and find that it can be understood from the near-horizon region. Our a…