23 citations · 132 across the 19 of their papers we have counts for
19 papers
Classical Unattainability of Extremality in non-BPS D-brane Systems
Pranav Kumar, Swapnamay Mondal
For the worldline theory of an extremal black hole, extremality amounts to vanishing ground state energy. In light of recent gravity results one would expect much like the ground s…
An extremal black hole with a unique ground state
Swapnamay Mondal
Recent computations in gravity suggest that non-supersymmetric extremal black holes lack any sizeable ground state degeneracy. We confirm this for D-brane description of non-supers…
Non-trivial saddles in microscopic description of black holes
Pranav Kumar, Swapnamay Mondal
Non-trivial gravitational saddles have played a key role in the island proposal for the black hole information paradox. It is worth asking if non-trivial saddles exist in microscop…
Statistical Mechanics of Exponentially Many Low Lying States
Swapnamay Mondal
It has recently been argued that for near-extremal black holes, the entropy and the energy above extremality respectively receive a logT and a T-linear correction, where T is the t…
Black holes and the loss landscape in machine learning
Pranav Kumar, Taniya Mandal, Swapnamay Mondal
Understanding the loss landscape is an important problem in machine learning. One key feature of the loss function, common to many neural network architectures, is the presence of…
Supersymmetric black holes and deformation
Jan Manschot, Swapnamay Mondal
The entropy of supersymmetric black holes in string theory compactifications can be related to that of a D- or M-brane system, which in many cases can be further reduced to a two-d…
Scaling Black Holes and Modularity
Aradhita Chattopadhyaya, Jan Manschot, Swapnamay Mondal
Scaling black holes are solutions of supergravity with multiple black hole singularities, which can be adiabatically connected to a single center black hole solution. We develop te…
Multi-centered black holes, scaling solutions and pure-Higgs indices from localization
Guillaume Beaujard, Swapnamay Mondal, Boris Pioline
The Coulomb Branch Formula conjecturally expresses the refined Witten index for Quiver Quantum Mechanics as a sum over multi-centered collinear black hole solutions, weighted…
Phase Thermalization: from Fermi Liquid to Incoherent Metal
Pinaki Banerjee, Bidisha Chakrabarty, Swapnamay Mondal
When a system consists of a large subsystem (bath) and a small one (probe), thermalization implies induction of temperature of the bath onto the probe. If both the bath and the pro…
Quiver indices and Abelianization from Jeffrey-Kirwan residues
Guillaume Beaujard, Swapnamay Mondal, Boris Pioline
In quiver quantum mechanics with 4 supercharges, supersymmetric ground states are known to be in one-to-one correspondence with Dolbeault cohomology classes on the moduli space of…
A simple model for Hawking radiation
Swapnamay Mondal
We consider free Majorana fermions probing a SYK system comprising of Majorana fermions. We solve the full system in deep infrared and in large (as well as large ) l…
The full space of BPS multicenter states with pure D-brane charges
Pierre Heidmann, Swapnamay Mondal
We investigate the space of BPS states in type IIA string theory on a T wrapped by one D6 brane and three D2 branes wrapping three disjoint 2-tori. This system of branes has 12…
Super-maximal chaos and instability
Swapnamay Mondal
An upper bound on Lyapunov exponent of a thermal many body quantum system has been conjectured recently. In this work, we attempt to achieve a physical understanding of what preven…
Tensor Models for Black Hole Probes
Nick Halmagyi, Swapnamay Mondal
The infrared dynamics of the SYK model, as well as its associated tensor models, exhibit some of the non trivial features expected of a holographic dual of near extremal black hole…
Conformality of corrections in SYK-like models
Stéphane Dartois, Harold Erbin, Swapnamay Mondal
The Sachdev--Ye--Kitaev is a quantum mechanical model of Majorana fermions which displays a number of appealing features -- solvability in the strong coupling regime, near-conf…
Do All BPS Black Hole Microstates Carry Zero Angular Momentum?
Abhishek Chowdhury, Richard S. Garavuso, Swapnamay Mondal +1
From the analysis of the near horizon geometry and supersymmetry algebra it has been argued that all the microstates of single centered BPS black holes with four unbroken supersymm…
Surviving in a Metastable de Sitter Space-Time
Sitender Pratap Kashyap, Swapnamay Mondal, Ashoke Sen +1
In a metastable de Sitter space any object has a finite life expectancy beyond which it undergoes vacuum decay. However, by spreading into different parts of the universe which wil…
Entanglement of Spatial Regions vs. Entanglement of Particles
Swapnamay Mondal
Consider an arbitrary local quantum field theory with a gap or an arbitrary gapless free theory. We consider states in such a theory, that describe two entangled particles localize…
BPS State Counting in N=8 Supersymmetric String Theory for Pure D-brane Configurations
Abhishek Chowdhury, Richard S. Garavuso, Swapnamay Mondal +1
Exact results for the BPS index are known for a class of BPS dyons in type II string theory compactified on a six dimensional torus. In this paper we set up the problem of counting…