239 citations · 686 across the 15 of their papers we have counts for
15 papers
Galilean Kalb-Ramond Field
Aditya Mehra
In this paper, we build the Galilean limit of the free Kalb-Ramond two-form and also study the symmetries. Two different methods are discussed. The first is an Inönü-Wigner contrac…
3d Carrollian Chern-Simons theory and 2d Yang-Mills
Arjun Bagchi, Arthur Lipstein, Mangesh Mandlik +1
With the goal of building a concrete co-dimension one holographically dual field theory for four dimensional asymptotically flat spacetimes (4d AFS) as a limit of AdS/CFT,…
One-Loop Quantum Effects in Carroll Scalars
Kinjal Banerjee, Rudranil Basu, Bhagya Krishnan +3
Carrollian field theories at the classical level possess an infinite number of space-time symmetries, namely the supertranslations. In this article, we inquire whether these symmet…
Towards Carrollian quantization: renormalization of Carrollian electrodynamics
Aditya Mehra, Aditya Sharma
Field-theoretic description of Carrollian theories has largely remained classical so far. In this paper, we attempt to study the renormalization of Carrollian gauge field theories…
ModMax meets GCA
Aritra Banerjee, Aditya Mehra
A maximally symmetric non-linear extension of Maxwell's theory in four dimensions called ModMax has been recently introduced in the literature. This theory preserves both electroma…
Galilean Gauge Theories from Null Reductions
Arjun Bagchi, Rudranil Basu, Minhajul Islam +2
The procedure of null reduction provides a concrete way of constructing field theories with Galilean invariance. We use this to examine Galilean gauge theories, viz. Galilean elect…
Galilean Electrodynamics: Covariant formulation and Lagrangian
Aditya Mehra, Yaman Sanghavi
In this paper, we construct a single Lagrangian for both limits of Galilean electrodynamics. The framework relies on a covariant formalism used in describing Newton-Cartan geometry…
Interacting Conformal Carrollian Theories: Cues from Electrodynamics
Kinjal Banerjee, Rudranil Basu, Aditya Mehra +2
We construct the free Lagrangian of the magnetic sector of Carrollian electrodynamics. The construction relies on Helmholtz integrability condition for differential equations in a…
Field Theories on Null Manifolds
Arjun Bagchi, Rudranil Basu, Aditya Mehra +1
We argue that generic field theories defined on null manifolds should have an emergent BMS or conformal Carrollian structure. We then focus on a simple interacting conformal Carrol…
Field Theories with Conformal Carrollian Symmetry
Arjun Bagchi, Aditya Mehra, Poulami Nandi
Conformal Carrollian groups are known to be isomorphic to Bondi-Metzner-Sachs (BMS) groups that arise as the asymptotic symmetries at the null boundary of Minkowski spacetime. The…
Galilean Field Theories and Conformal Structure
Arjun Bagchi, Joydeep Chakrabortty, Aditya Mehra
We perform a detailed analysis of Galilean field theories, starting with free theories and then interacting theories. We consider non-relativistic versions of massless scalar and D…
Flat Holography: Aspects of the dual field theory
Arjun Bagchi, Rudranil Basu, Ashish Kakkar +1
Assuming the existence of a field theory in D dimensions dual to (D+1)-dimensional flat space, governed by the asymptotic symmetries of flat space, we make some preliminary remarks…
Galilean Yang-Mills Theory
Arjun Bagchi, Rudranil Basu, Ashish Kakkar +1
We investigate the symmetry structure of the non-relativistic limit of Yang-Mills theories. Generalising previous results in the Galilean limit of electrodynamics, we discover that…
A Schrödinger approach to Newton-Cartan and Hořava-Lifshitz gravities
Hamid R. Afshar, Eric A. Bergshoeff, Aditya Mehra +2
We define a `non-relativistic conformal method', based on a Schrödinger algebra with critical exponent z = 2, as the non-relativistic version of the relativistic conformal method.…
Galilean Conformal Electrodynamics
Arjun Bagchi, Rudranil Basu, Aditya Mehra
Maxwell's Electrodynamics admits two distinct Galilean limits called the Electric and Magnetic limits. We show that the equations of motion in both these limits are invariant under…