1.7k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Tata Institute of Fundamental ResearchIN874 papers
- Centre National de la Recherche ScientifiqueFR832 papers
- California Institute of TechnologyUS802 papers
- University of Maryland, College ParkUS798 papers
- Cornell UniversityUS796 papers
- Saha Institute of Nuclear PhysicsIN796 papers
- University of AntwerpBE796 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT794 papers
- National Central UniversityTW794 papers
- University of WarsawPL794 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano BicoccaIT793 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TriesteIT793 papers
136 papers · 1 filter
An 'exceptional' form for symmetries in maximal supergravity
Sudarshan Ananth, Nipun Bhave
The global symmetries in maximally supersymmetric theories of gravity in are shown to have a universal form in light-cone superspace. The procedure for deriving an all orde…
Cosmological cutting rules for Bogoliubov initial states
Diptimoy Ghosh, Enrico Pajer, Farman Ullah
The field theoretic wavefunction in cosmological spacetimes has received much attention as a fundamental object underlying the generation of primordial perturbations in our univers…
Bispectrum at 1-loop in the Effective Field Theory of Inflation
Supritha Bhowmick, Diptimoy Ghosh, Farman Ullah
In this paper we compute 1-loop corrections to the bispectrum in the decoupling limit of the Effective Field Theory of Inflation (EFToI). We regulate the divergences by employing d…
Inflationary non-Gaussianities in alpha vacua and consistency with conformal symmetries
Arhum Ansari, Pinak Banerjee, Prateksh Dhivakar +2
We study the conformal invariance of inflationary non-Gaussianities associated with scalar fluctuations in a non-Bunch-Davies initial state, known as the -vacuum, in single-fiel…
Resurgence in the Scalar Quantum Electrodynamics Euler-Heisenberg Lagrangian
Drishti Gupta, Arun M. Thalapillil
We explore the ideas of resurgence and Padé-Borel resummation in the Euler-Heisenberg Lagrangian of scalar quantum electrodynamics, which has remained largely unexamined in these c…
Deriving interaction vertices in higher derivative theories
Sudarshan Ananth, Nipun Bhave, Chetan Pandey +1
We derive cubic interaction vertices for a class of higher-derivative theories involving three arbitrary integer spin fields. This derivation uses the requirement of closure of the…
BMS symmetry in gravity: Front form versus Instant form
Sudarshan Ananth, Sucheta Majumdar
In General Relativity, the allowed set of diffeomorphisms or gauge transformations at asymptotic infinity forms the BMS group, an infinite-dimensional extension of the Poincaré gro…
Mixed Graviton and Scalar Bispectra in the EFT of Inflation: Soft Limits and Boostless Bootstrap
Diptimoy Ghosh, Kushan Panchal, Farman Ullah
Boostless Bootstrap techniques have been applied by many in the literature to compute pure scalar and graviton correlators. In this paper, we focus primarily on mixed graviton and…
Soft factors and interaction vertices from light-cone actions
Sudarshan Ananth, Chetan Pandey, Saurabh Pant
Universal factors associated with the emission of a soft boson in gauge theories and gravity, formulated in the light-cone gauge, are presented. The inverse-soft method, for constr…
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…
Crossing Symmetry in Matter Chern-Simons Theories at finite and
Umang Mehta, Shiraz Minwalla, Chintan Patel +2
We present a conjecture for the crossing symmetry rules for Chern-Simons gauge theories interacting with massive matter in dimensions. Our crossing rules are given in terms o…
A note on the action with the Schwarzian at the stretched horizon
Mohd Ali, Vardarajan Suneeta
In this paper, we discuss the quantization of an interesting model of Carlip which appeared recently. It shows a way to associate boundary degrees of freedom to the stretched horiz…
Coherent States and Particle Scattering in Loop Quantum Gravity
Deepak Vaid, Devadharshini Suresh
Quantum field theory provides us with the means to calculate scattering amplitudes. In recent years a dramatic new development has lead to great simplification of such calculations…
Classification of Unitary RCFTs with Two Primaries and Central Charge Less Than 25
Sunil Mukhi, Brandon C. Rayhaun
We classify all two-dimensional, unitary, rational conformal field theories with two primaries, central charge , and arbitrary Wronskian index. In mathematical parlance, we c…
The structure of interaction vertices in pure gravity in the light-cone gauge
Sudarshan Ananth, Nipun Bhave, S. I. Aadharsh Raj
The first truly non-MHV interaction vertices in the light-cone formulation of pure gravity appear at order 6. From a closed form expression, for gravitation in the light-cone gauge…
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…
Probing the initial state of inflation: analytical structure of cosmological correlators
Diptimoy Ghosh, Amartya Harsh Singh, Farman Ullah
We study the analytic structure of in-in correlation functions in a deSitter background. The aim of this study is to probe the initial conditions for inflation through the features…
Mapping Large N Slightly Broken Higher Spin (SBHS) theory correlators to Free theory correlators
Prabhav Jain, Sachin Jain, Bibhut Sahoo +2
We develop a systematic method to constrain any n-point correlation function of spinning operators in Large N Slightly Broken Higher Spin (SBHS) theories. As an illustration of the…
A CFT interpretation of cosmological correlation functions in vacua in de-Sitter space
Sachin Jain, Nilay Kundu, Suman Kundu +2
de-Sitter(dS) space allows for a generalized class of vacua, known as vacua, described by some parameters. The Bunch-Davies (BD) vacua is a point in this parameter space. The c…
4D Flat-space scattering amplitude / correlator correspondence revisited
Sachin Jain, Abhishek Mehta
In this paper, we make connection between CFT three point correlation function of conserved currents and 4D three point amplitude of general spin massless gauge field explicit.…
Constraining momentum space CFT correlators with consistent position space OPE limit and the collider bound
Sachin Jain, Renjan Rajan John, Abhishek Mehta +1
Consistency with position space OPE limit requires momentum space CFT correlators to have only total energy singularity. We show that this requirement gives a simple proof of the k…
Dual Theory for maximally extended flat Supergravity
Nabamita Banerjee, Arindam Bhattacharjee, Surajit Biswas +1
Maximally extended dimensional flat Supergravity theories exist for a class of super-Poincaré algebras for arbitrary . They have rich asymptotic st…
Relation between parity-even and parity-odd CFT correlation functions in three dimensions
Sachin Jain, Renjan Rajan John
In this paper we relate the parity-odd part of two and three point correlation functions in theories with exactly conserved or weakly broken higher spin symmetries to the parity-ev…
Page Curve for Entanglement Negativity through Geometric Evaporation
Jaydeep Kumar Basak, Debarshi Basu, Vinay Malvimat +2
We compute the entanglement negativity for various pure and mixed state configurations in a bath coupled to an evaporating two dimensional non-extremal Jackiw-Teitelboim (JT) black…