6 papers
The Tensionless Lives of Null Strings
Arjun Bagchi, Aritra Banerjee, Ritankar Chatterjee +1
The tensionless limit probes the very high energy regime of string theory in contrast to the well studied point-particle limit which reduces to Einstein gravity. Tensionless string…
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…
Gravitational waves from parabolic encounters: A study of linear and nonlinear memory
Samik Dutta, Ankur Chhabra, Aritra Banerjee +2
The memory effect is known to introduce a permanent displacement in the gravitational wave (GW) detectors after the passage of a GW signal. While the adher…
Strings near BTZ black holes: A Carrollian Chronicle
Aritra Banerjee, Arkachur Bhattacharya, Sharang Rajesh Iyer +2
The BTZ black hole provides a tractable (2+1)-dimensional example for investigating string dynamics in curved spacetime. However, a systematic and robust analysis of the solution s…
Non-relativistic Strings: Classical solutions and exactly solvable models
Aritra Banerjee, Adrita Chakraborty, Nibedita Padhi
We discuss classical closed string solutions in non-relativistic two-sphere target spaces. These classes of solutions closely relate to the GKP-type, spinning and pulsating strings…
Tensionless Strings in a Kalb-Ramond Background
Aritra Banerjee, Ritankar Chatterjee, Priyadarshini Pandit
We investigate tensionless (or null) bosonic string theory with a Kalb-Ramond background turned on. In analogy with the tensile case, we find that the Kalb-Ramond field has a non-t…