23 citations · 116 across the 20 of their papers we have counts for
20 papers
OPE and correlation functions in a generally covariant form
Arpit Das, Anatoly Konechny, Naveen Balaji Umasankar
In this paper we consider some general aspects of Euclidean conformal field theories on curved spaces of dimension . We first look at the OPE of scalar primary fields on co…
Unlocking the Wronskian Tower: A Simplification of the Holomorphic Modular Bootstrap
Arpit Das, Sunil Mukhi
Characters of rational conformal field theories solve modular linear differential equations labelled by their order and the Wronskian index . Direct classification of admissi…
Dissipative hydrodynamic actions and horizon symmetries in gravity
Mike Blake, Arpit Das, Richard A. Davison
We give a prescription to compute a dissipative action describing the large-scale thermal stress tensor dynamics of a holographic quantum field theory dual to AdS gravity, in t…
Verlinde lines, anyon permutations and commutant pairs inside CFT
Naveen Balaji Umasankar, Arpit Das
We develop a defect-theoretic refinement of meromorphic 2d CFTs in which the ordinary torus partition function -- often just the vacuum character -- does not reveal how states orga…
Spectra of T-vertex and T-edge neighbourhood corona of Two Graphs
Indranil Mukherjee, Suvra Kanti Chakraborty, Arpita Das
The -graph of a graph is the graph whose vertices are the vertices and edges of , with two vertices of are adjacent if and only if the corresponding element…
Signs, growth and admissibility of quasi-characters and the holomorphic modular bootstrap for RCFT
Arpit Das, Sunil Mukhi
Rational conformal field theories in 2d have partition functions built from holomorphic characters, whose classification can be addressed via the holomorphic modular bootstrap. Thi…
Generalized Symmetry Resolution of Entanglement in CFT for Twisted and Anyonic sectors
Arpit Das, Javier Molina-Vilaplana, Pablo Saura-Bastida
A comprehensive symmetry resolution of the entanglement entropy (EE) in -d rational conformal field theories (RCFT) with categorical non-invertible symmetries is presented.…
Hydrodynamic fluctuations and topological susceptibility in chiral magnetohydrodynamics
Arpit Das, Nabil Iqbal, Napat Poovuttikul
Chiral magnetohydrodynamics is devoted to understanding the late-time and long-distance behavior of a system with an Adler-Bell-Jackiw anomaly at finite temperatures. The non-conse…
Meromorphic CFTs have central charges c = 8: a proof based on the MLDE approach and Rademacher series
Arpit Das
In this short note, we present a simple and elementary proof that meromorphic conformal field theories (CFTs) have central charges of the form: with (the se…
Higher-form symmetry and chiral transport in real-time Abelian lattice gauge theory
Arpit Das, Adrien Florio, Nabil Iqbal +1
We study classical lattice simulations of theories of electrodynamics coupled to charged matter at finite temperature, interpreting them using the higher-form symmetry formulation…
Modular Differential Equations with Movable Poles and Admissible RCFT Characters
Arpit Das, Chethan N. Gowdigere, Sunil Mukhi +1
Studies of modular linear differential equations (MLDE) for the classification of rational CFT characters have been limited to the case where the coefficient functions (in monic fo…
Towards an effective action for chiral magnetohydrodynamics
Arpit Das, Nabil Iqbal, Napat Poovuttikul
We consider chiral magnetohydrodynamics, i.e. a finite-temperature system where an axial current is not conserved due to an Adler-Bell-Jackiw anomaly saturated by the dynami…
Meromorphic Cosets and the Classification of Three-Character CFT
Arpit Das, Chethan N. Gowdigere, Sunil Mukhi
We investigate the admissible vector-valued modular forms having three independent characters and vanishing Wronskian index and determine which ones correspond to genuine 2d confor…
Two- & Three-character solutions to MLDEs and Ramanujan-Eisenstein Identities for Fricke Groups
Arpit Das, Naveen Balaji Umasankar
In this work we extend the study of arXiv:2210.07186 by investigating two- and three-character MLDEs for Fricke groups at prime levels. We have constructed these higher-character M…
New meromorphic CFTs from cosets
Arpit Das, Chethan N. Gowdigere, Sunil Mukhi
In recent years it has been understood that new rational CFTs can be discovered by applying the coset construction to meromorphic CFTs. Here we turn this approach around and show t…
Higher-form symmetries, anomalous magnetohydrodynamics, and holography
Arpit Das, Ruth Gregory, Nabil Iqbal
In Abelian gauge theory coupled to fermions, the non-conservation of the axial current due to the chiral anomaly is given by a dynamical operator con…
Classifying three-character RCFTs with Wronskian Index equalling or
Arpit Das, Chethan N. Gowdigere, Jagannath Santara
In the modular linear differential equation (MLDE) approach to classifying rational conformal field theories (RCFTs) both the MLDE and the RCFT are identified by a pair of non-nega…
Wronskian Indices and Rational Conformal Field Theories
Arpit Das, Chethan N. Gowdigere, Jagannath Santara
The classification scheme for rational conformal field theories, given by the Mathur-Mukhi-Sen (MMS) program, identifies a rational conformal field theory by two numbers: .…
Unitary Black hole radiation: Schwarzschild-global monopole background
Arpit Das, Narayan Banerjee
Black hole radiation from an infinitesimally thin massive collapsing shell, possessing a global monopole charge, which in turn leads to a Schwarzschild black hole with a global mon…
Unitarity in Reissner-Nordström background: striding away from information loss
Arpit Das, Narayan Banerjee
We have shown analytically that radiation from a collapsing shell which leads to a charged black hole, whose exterior is described by the RN (Reissner-Nordström) metric (and hence…