28 citations · 72 across the 11 of their papers we have counts for
11 papers
Krylov Complexity: Flat bands and Carroll breaking deformations
Aritra Banerjee, Arpan Bhattacharyya, Rudranil Basu +1
Systems with flat band structures, when written in the language of Compact Localised States (CLS), have been shown to be explicitly invariant under supertranslation symmetries, mak…
The Carrollian Kaleidoscope
Arjun Bagchi, Aritra Banerjee, Prateksh Dhivakar +2
The Carroll group arises in the vanishing speed of light limit of the Poincaré group and was initially discarded as just a mathematical curiosity. However, recent developments have…
Emergent Carroll symmetry at phase separation in one-dimensional lattice systems
Sourav Biswas, Ashutosh Dubey, Saikat Mondal +3
Asymptotic behavior of generic Tomonaga-Luttinger liquid in the vicinity of phase-separated regions is known to produce an instability where well-known relativistic Conformal Field…
Flat Bands and Compact Localised States: A Carrollian roadmap
Nisa Ara, Aritra Banerjee, Rudranil Basu +1
We show how Carrollian symmetries become important in the construction of one-dimensional fermionic systems with all flat-band spectra from first principles. The key ingredient of…
Carroll in Shallow Water
Arjun Bagchi, Aritra Banerjee, Saikat Mondal +1
We discover a surprising connection between Carrollian symmetries and hydrodynamics in the shallow water approximation. Carrollian symmetries arise in the speed of light going to z…
Strings, Virasoro Sandwiches and Worldsheet Horizons
Arjun Bagchi, Aritra Banerjee, Ida M. Rasulian +1
We revisit the canonical quantization of free bosonic closed string theory and observe that the physicality of states requires vanishing of the worldsheet Virasoro algebra generato…
Strings near black holes are Carrollian -- Part II
Arjun Bagchi, Aritra Banerjee, Jelle Hartong +2
We study classical closed bosonic strings probing the near-horizon region of a non-extremal black hole and show that this corresponds to understanding string theory in the Carroll…
Symmetry Resolution in non-Lorentzian Field Theories
Aritra Banerjee, Rudranil Basu, Arpan Bhattacharyya +1
Starting from the computation of Symmetry Resolved Entanglement Entropy (SREE) for boosted intervals in a two dimensional Conformal Field Theory, we compute the same in various non…
Beyond Wilson? Carroll from current deformations
Arjun Bagchi, Aritra Banerjee, Saikat Mondal +2
At extreme energies, both low and high, the spacetime symmetries of relativistic quantum field theories (QFTs) are expected to change with Galilean symmetries emerging in the very…
Strings near black holes are Carrollian
Arjun Bagchi, Aritra Banerjee, Jelle Hartong +3
We demonstrate that strings near the horizon of a Schwarzschild black hole, when viewed by a stationary observer at infinity, probe a string Carroll geometry, where the effective l…
On Problems with Cosmography in Cosmic Dark Ages
Aritra Banerjee, Eoin Ó Colgáin, Misao Sasaki +2
Quasars show considerable promise as standard candles in a high-redshift window beyond Type Ia supernovae. Recently, Risaliti, Lusso \& collaborators \cite{Risaliti:2018reu, Lusso:…