INSTITUTIONAL DIGITAL REPOSITORY

Browsing by Author "Bagchi, A."

Browsing by Author "Bagchi, A."

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  • Exotic origins of tensionless superstrings 
    Bagchi, A.; Banerjee, A.; Chakrabortty, S.; Parekh, P. (2020-03-09)
    A new type of tensionless superstring theory, called the Inhomogeneous tensionless superstring, has been recently introduced. This is characterised by a residual symmetry algebra on the worldsheet richer in structure ...
  • Inhomogeneous tensionless superstrings 
    Bagchi, A.; Banerjee, A.; Chakrabortty, S.; Parekh, P. (2018-11-13)
    We construct a novel tensionless limit of Superstring theory that realises the Inhomogeneous Super Galilean Conformal Algebra (SGCAI ) as the residual symmetry in the analogue of the conformal gauge, as opposed to previous ...
  • Non-Lorentzian chaos and cosmological holography 
    Bagchi, A.; Chakrabortty, S.; Grumiller, D.; Radhakrishnan, B.; Riegler, M.; Sinha, A. (2022-08-18)
    We study chaos in non-Lorentzian field theories, specifically Galilean and Carrollian conformal field theories in two dimensions. In a large central charge limit, we find that the Lyapunov exponent saturates the bound on ...
  • Rindler physics on the string worldsheet 
    Bagchi, A.; Banerjee, A.; Chakrabortty, S. (2021-07-25)
    We construct the tensionless limit of bosonic string theory in terms of a family of worldsheets with increasing acceleration and show that the null string emerges in the limit of infinite acceleration when the Rindler ...
  • A Rindler road to Carrollian worldsheets 
    Bagchi, A.; Banerjee, A.; Chakrabortty, S.; Chatterjee, R. (2022-05-31)
    The tensionless limit of string theory has recently been formulated in terms of worldsheet Rindler physics. In this paper, by considering closed strings moving in background Rindler spacetimes, we provide a concrete ...
  • A tale of three tensionless strings and vacuum structure. 
    Bagchi, A.; Banerjee, A.; Chakrabortty, S.; Dutta, S.; Parekh, P. (2021-06-15)
    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 and the Bondi-Metnzer-Sachs (BMS) algebra ...