48 citations · 143 across the 17 of their papers we have counts for
18 papers
Imprint of the black hole interior on thermal four-point correlators
Joydeep Chakravarty
We consider correlators smeared against directed wavepackets over a thermal state dual to a single-sided planar AdS black hole. In the large frequency limit, our measurement is sim…
Imprint of the black hole singularity on thermal two-point functions
Nima Afkhami-Jeddi, Simon Caron-Huot, Joydeep Chakravarty +1
We consider two-point functions of light fields at finite temperature and large real frequencies in holographic theories. The thermal system is dual to a single-sided AdS black hol…
The spectrum of pure dS gravity in the static patch
Joydeep Chakravarty, Alexander Maloney, Keivan Namjou +1
We consider the quantum mechanical description of the de Sitter static patch in three-dimensional general relativity. We consider a Lorentzian path integral that conjecturally comp…
Looking at bulk points in general geometries
Simon Caron-Huot, Joydeep Chakravarty, Keivan Namjou
The holographic correspondence predicts that certain strongly coupled quantum systems describe an emergent, higher-dimensional bulk spacetime in which excitations enjoy local dynam…
Boundary imprint of bulk causality
Simon Caron-Huot, Joydeep Chakravarty, Keivan Namjou
Motivated by the holographic correspondence, we study the boundary imprint of bulk lightcones in spacetimes with boundaries. These lightcones can be observed whenever a localized e…
A new observable for holographic cosmology
Joydeep Chakravarty, Alexander Maloney, Keivan Namjou +1
The double-cone geometry is a saddle of the gravitational path integral, which explains the chaotic statistics of the spectrum of black hole microstates. This geometry is the usual…
What if string theory has a de Sitter excited state?
Joydeep Chakravarty, Keshav Dasgupta
We propose precise effective field theory criteria to obtain a four-dimensional de Sitter space within M-theory. To this effect, starting with the state space described by the acti…
Coherent States in M-Theory: A Brane Scan using the Taub-NUT
Joydeep Chakravarty, Keshav Dasgupta, Diksha Jain +3
The Taub-NUT geometry corresponds to the Kaluza-Klein monopole solution of M-theory and on dimension reduction along the Taub-NUT circle direction it becomes the D6 brane of type I…
Holography of information in de Sitter space
Tuneer Chakraborty, Joydeep Chakravarty, Victor Godet +2
We study the natural norm on the space of solutions to the Wheeler-DeWitt equation in an asymptotically de Sitter spacetime. We propose that the norm is obtained by integrating the…
The Hilbert space of de Sitter quantum gravity
Tuneer Chakraborty, Joydeep Chakravarty, Victor Godet +2
We obtain solutions of the Wheeler-DeWitt equation with positive cosmological constant for a closed universe in the large-volume limit. We argue that this space of solutions provid…
Holography of information in massive gravity using Dirac brackets
Joydeep Chakravarty, Diksha Jain, Akhil Sivakumar
The principle of holography of information states that in massless gravity, it is possible to extract bulk information using asymptotic boundary operators. In our work, we study th…
On the positivity of Coon amplitude in D=4
Joydeep Chakravarty, Pronobesh Maity, Amiya Mishra
The Coon amplitude is the unique solution to duality constraints with logarithmic Regge trajectories. A striking feature of this solution is that it interpolates between the Venezi…
Normalization of D instanton amplitudes in two dimensional type 0B string theory
Joydeep Chakravarty, Ashoke Sen
We compute the normalization of the D-instanton amplitudes in type 0B string theory in two dimensions and find perfect agreement with the dual matrix model result.
A monogamy paradox in empty flat space
Tuneer Chakraborty, Joydeep Chakravarty, Priyadarshi Paul
In a recent paper, Raju showed that the essential features of the monogamy paradox for old flat space black holes could be modeled using a setup in empty AdS, leading to a violatio…
Small corrections to semiclassical gravity and their role in information paradoxes
Joydeep Chakravarty
In this essay, we qualitatively demonstrate how small non-perturbative corrections are a necessary addition to semiclassical gravity's path integral. We use this to discuss implica…
Critical exponents for higher order phase transitions: Landau theory and RG flow
Joydeep Chakravarty, Diksha Jain
In this work, we define and calculate critical exponents associated with higher order thermodynamic phase transitions. Such phase transitions can be classified into two classes: wi…
Overcounting of interior excitations: A resolution to the bags of gold paradox in AdS
Joydeep Chakravarty
In this work, we investigate how single-sided and eternal black holes in AdS can host an enormous number of semiclassical excitations in their interior, which is seemingly not refl…
Nonlinear Langevin dynamics via holography
Bidisha Chakrabarty, Joydeep Chakravarty, Soumyadeep Chaudhuri +3
In this work, we consider non-linear corrections to the Langevin effective theory of a heavy quark moving through a strongly coupled CFT plasma. In AdS/CFT, this system can be iden…