1.2k citations · 4k across the 42 of their papers we have counts for
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Non-dissipative hydrodynamics: Effective actions versus entropy current
Jyotirmoy Bhattacharya, Sayantani Bhattacharyya, Mukund Rangamani
While conventional hydrodynamics incorporating dissipative effects is hard to derive from an action principle, it is nevertheless possible to construct classical actions when the d…
A One-Loop Test of Quantum Supergravity
Sayantani Bhattacharyya, Alba Grassi, Marcos Marino +1
The partition function on the three-sphere of ABJM theory and its generalizations has, at large N, a universal, subleading logarithmic term. Inspired by the success of one-loop qua…
Constraints on Superfluid Hydrodynamics from Equilibrium Partition Functions
Sayantani Bhattacharyya, Sachin Jain, Shiraz Minwalla +1
Following up on recent work in the context of ordinary fluids, we study the equilibrium partition function of a 3+1 dimensional superfluid on an arbitrary stationary background spa…
Heat Kernel Expansion and Extremal Kerr-Newmann Black Hole Entropy in Einstein-Maxwell Theory
Sayantani Bhattacharyya, Binata Panda, Ashoke Sen
We compute the second Seely-DeWitt coefficient of the kinetic operator of the metric and gauge fields in Einstein-Maxwell theory in an arbitrary background field configuration. We…
Constraints on Fluid Dynamics from Equilibrium Partition Functions
Nabamita Banerjee, Jyotirmoy Bhattacharya, Sayantani Bhattacharyya +3
We study the thermal partition function of quantum field theories on arbitrary stationary background spacetime, and with arbitrary stationary background gauge fields, in the long w…
Constraints on the second order transport coefficients of an uncharged fluid
Sayantani Bhattacharyya
In this note we have tried to determine how the existence of a local entropy current with non-negative divergence constrains the second order transport coefficients of an uncharged…