46 citations · 107 across the 15 of their papers we have counts for
15 papers
Modular quantization and black holes
Suchetan Das
Witten recently proposed a background-independent algebraic framework for quantum gravity, wherein an observer endowed with a Hamiltonian defines a diffeomorphism invariant worldli…
Notes on heating phase dynamics in Floquet CFTs and Modular quantization
Suchetan Das, Bobby Ezhuthachan, Somnath Porey +1
In this article, we explore the connection between the heating phase of periodically driven CFTs and the Modular Hamiltonian of a subregion in the vacuum state. We show that the he…
Stretched Horizon from Conformal Field Theory
Suchetan Das
Recently, it has been observed that the Hartle-Hawking correlators, a signature of smooth horizon, can emerge from certain heavy excited state correlators in the (manifestly non-sm…
A Smooth Horizon without a Smooth Horizon
Vaibhav Burman, Suchetan Das, Chethan Krishnan
Recent observations on type III algebras in AdS/CFT raise the possibility that smoothness of the black hole horizon is an emergent feature of the large- limit. In this paper, we…
Brane Detectors of a Dynamical Phase Transition in a Driven CFT
Suchetan Das, Bobby Ezhuthachan, Arnab Kundu +3
We show that a dynamical transition from a non-heating to a heating phase of a periodic driven two-dimensional conformal field theory (CFT) with a large central…
Out-of-Time-Order correlators in driven conformal field theories
Suchetan Das, Bobby Ezhuthachan, Arnab Kundu +3
We compute Out-of-Time-Order correlators (OTOCs) for conformal field theories (CFTs) subjected to either continuous or discrete periodic drive protocols. This is achieved by an app…
Scrambling under quench
Adith Sai Aramthottil, Diptarka Das, Suchetan Das +1
We evaluate out of time ordered correlators in certain low dimensional quantum systems at zero temperature, subjected to homogenous quantum quenches. We find that when the Lyapunov…
Critical Quenches, OTOCs and Early-Time Chaos
Suchetan Das, Bobby Ezhuthachan, Arnab Kundu +2
In this article, we explore dynamical aspects of Out-of-Time-Order correlators (OTOCs) for critical quenches, in which an initial non-trivial state evolves with a CFT-Hamiltonian.…
Virasoro algebras, kinematic space and the spectrum of modular Hamiltonians in CFT
Suchetan Das, Bobby Ezhuthachan, Somnath Porey +1
We construct an infinite class of eigenmodes with integer eigenvalues for the Vacuum Modular Hamiltonian of a single interval in 2d CFT and study some of its interesting proper…
Real Time Dynamics in Low Point Correlators in 2d BCFT
Suchetan Das, Bobby Ezhuthachan, Arnab Kundu
In this article, we demonstrate how a 3-point correlation function can capture the out-of-time-ordered features of a higher point correlation function, in the context of a conforma…
Spectrum of Modular Hamiltonian in the Vacuum and Excited States
Suchetan Das, Bobby Ezhuthachan
We study the non-zero eigenmodes for the modular Hamiltonian in the context of AdSCFT. We show how to perturbatively construct zero eigenmodes for the modular Hamiltonian…
Comments on spinning OPE blocks in AdS/CFT
Suchetan Das
We extend the work of \cite{Ferrara:1971vh},\cite{Ferrara:1973vz}, to obtain an integral expression of OPE blocks for spinning primaries in CFT. We observe, when the OPE bloc…
Modular Hamiltonians and large diffeomorphisms in
Suchetan Das, Bobby Ezhuthachan
We generalize the work of Kabat and Lifshytz (arXiv:1703.06523), of reconstructing bulk scalar fields using the intersecting modular hamiltonian approach discussed therein, to any…
Entanglement entropy and kinematic space in BCFT and RG flow
Samrat Bhowmick, Suchetan Das, Bobby Ezhuthachan
The relation between kinematic space metric and entanglement entropy provides us with a differential equation for entanglement entropy. For BCFT on upper half plane we solve this e…
Wald type analysis for spin-one fields in three dimensions
Nabarun Bera, Suchetan Das, Bobby Ezhuthachan
We revisit Walds analysis in the context of spin-one fields in three dimensions. A key technical difference from Walds is the role played by the three dimensional completely antisy…