Tensionless Superstrings: View from the Worldsheet
Arjun Bagchi, Shankhadeep Chakrabortty, Pulastya Parekh
TL;DR
This paper explores the residual symmetries of tensionless superstrings, revealing they form an extension of the 3d Super BMS algebra, linking worldsheet symmetries to asymptotic symmetries in 3d supergravity.
Contribution
It establishes a connection between tensionless superstring symmetries and the 3d Super BMS algebra, providing a new perspective on their worldsheet construction.
Findings
Residual symmetries form an extension of 3d Super BMS algebra
Links tensionless superstrings to asymptotic symmetries in 3d supergravity
Provides a limiting approach to tensionless superstring construction
Abstract
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 of) the recently discovered 3d Super Bondi-Metzner-Sachs algebra, discussed in the context of asymptotic symmetries of 3d Supergravity in flat-spacetimes. This helps us uncover a limiting approach to the construction of the tensionless superstring from the point of view of the worldsheet, analogous to the one we had adopted earlier for the closed tensionless bosonic string.
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