113 citations · 391 across the 11 of their papers we have counts for
12 papers
Interacting Galilean and Finite-Energy Carroll Fermions
Pulastya Parekh, Aditya Sharma, Mauricio Valenzuela
We present a unified derivation of the Galilean and Carrollian limits of the massive Dirac action based on a similarity transformation depending on the mass and the speed of light.…
On deformed pathways: CFT to CCFT
Aritra Banerjee, Pulastya Parekh, Robin Raj
We discuss the marginal deformation of massless scalar field theories in two dimensions from a dynamical perspective. The operator flow equations for such de…
BMS (Carrollian) field theories from a bound in the coupling of current-current deformations of CFT
Pulastya Parekh, David Tempo, Ricardo Troncoso
Two types of Carrollian field theories are shown to emerge from finite current-current deformations of toroidal CFT's when the deformation coupling is precisely fixed, up to…
A Tale of Three. Tensionless strings and vacuum structure
Arjun Bagchi, Aritra Banerjee, Shankhadeep Chakrabortty +2
Within the premise of canonical quantisation, we re-examine the quantum structure of bosonic tensionless string theory. In the classical theory, the worldsheet metric degenerates a…
Local quantum energy conditions in non-Lorentz-invariant quantum field theories
Daniel Grumiller, Pulastya Parekh, Max Riegler
We provide the first example of local quantum energy conditions in quantum field theories that are not Lorentz invariant. We focus on field theories in two dimensions with infinite…
The tensionless path from closed to open strings
Arjun Bagchi, Aritra Banerjee, Pulastya Parekh
We reconsider the tensionless limit on bosonic closed string theory, where the 3d Bondi-Metzner-Sachs (BMS) algebra appears as symmetries on the worldsheet, as opposed to two copie…
Exotic Origins of Tensionless Superstrings
Arjun Bagchi, Aritra Banerjee, Shankhadeep Chakrabortty +1
A new type of tensionless superstring theory, called the Inhomogeneous tensionless superstring, has been recently introduced. This is characterised by a residual symmetry algebra o…
Flatspace Chiral Supergravity
Arjun Bagchi, Rudranil Basu, Stéphane Detournay +1
We propose a holographic duality between a 2 dimensional (2d) chiral superconformal field theory and a certain theory of supergravity in 3d with flatspace boundary conditions that…
Inhomogeneous Tensionless Superstrings
Arjun Bagchi, Aritra Banerjee, Shankhadeep Chakrabortty +1
We construct a novel tensionless limit of Superstring theory that realises the Inhomogeneous Super Galilean Conformal Algebra (SGCA) as the residual symmetries in the analogue…
Tensionless Superstrings: View from the Worldsheet
Arjun Bagchi, Shankhadeep Chakrabortty, Pulastya Parekh
In this brief note, we show that the residual symmetries that arise in the analysis of the tensionless superstrings in the equivalent of the conformal gauge is (a trivial extension…
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.…
Tensionless Strings from Worldsheet Symmetries
Arjun Bagchi, Shankhadeep Chakrabortty, Pulastya Parekh
We revisit the construction of the tensionless limit of closed bosonic string theory in the covariant formulation in the light of Galilean conformal symmetry that rises as the resi…