134 citations · 307 across the 10 of their papers we have counts for
10 papers
Spread complexity and the saturation of wormhole size
Vijay Balasubramanian, Javier M. Magan, Poulami Nandi +1
Recent proposals equate the size of Einstein-Rosen bridges in JT gravity to spread complexity of a dual, double-scaled SYK theory (DSSYK). We show that the auxiliary ``chord basis'…
3D supergravity from Virasoro TQFT: Gravitational partition function and Out-of-time-order correlator
Arpan Bhattacharyya, Saptaswa Ghosh, Poulami Nandi +1
In this paper, we compute the partition functions of SUGRA for different boundary topologies, i.e. punctured sphere and torus, using super-Virasoro TQFT. We use fus…
Operator growth and Krylov Complexity in Bose-Hubbard Model
Arpan Bhattacharyya, Debodirna Ghosh, Poulami Nandi
We study Krylov complexity of a one-dimensional Bosonic system, the celebrated Bose-Hubbard Model. The Bose-Hubbard Hamiltonian consists of interacting bosons on a lattice, describ…
Circuit Complexity for Carrollian Conformal (BMS) Field Theories
Arpan Bhattacharyya, Poulami Nandi
We systematically explore the construction of Nielsen's circuit complexity to a non-Lorentzian field theory keeping in mind its connection with flat holography. We consider a 2d bo…
Carrollian superconformal theories and super BMS
Arjun Bagchi, Daniel Grumiller, Poulami Nandi
We investigate the supersymmetric versions of Bondi-Metzner-Sachs or, equivalently, conformal Carroll symmetry in boundary dimensions , with applications of flat space hologra…
BMS Modular Diaries: Torus one-point function
Arjun Bagchi, Poulami Nandi, Amartya Saha +1
Two dimensional field theories invariant under the Bondi-Metzner-Sachs (BMS) group are conjectured to be dual to asymptotically flat spacetimes in three dimensions. In this paper,…
Field Theories on Null Manifolds
Arjun Bagchi, Rudranil Basu, Aditya Mehra +1
We argue that generic field theories defined on null manifolds should have an emergent BMS or conformal Carrollian structure. We then focus on a simple interacting conformal Carrol…
Field Theories with Conformal Carrollian Symmetry
Arjun Bagchi, Aditya Mehra, Poulami Nandi
Conformal Carrollian groups are known to be isomorphic to Bondi-Metzner-Sachs (BMS) groups that arise as the asymptotic symmetries at the null boundary of Minkowski spacetime. The…
Large D gravity and charged membrane dynamics with nonzero cosmological constant
Suman Kundu, Poulami Nandi
In this paper, we have found a class of dynamical charged 'black-hole' solutions to Einstein-Maxwell system with a non-zero cosmological constant in a large number of spacetime dim…
Thermodynamic geometry of holographic superconductors
Sayan Basak, Pankaj Chaturvedi, Poulami Nandi +1
We obtain the thermodynamic geometry of a (2+1) dimensional strongly coupled quantum field theory at a finite temperature in a holographic set up, through the gauge/gravity corresp…