Null bosonic string quantization on Carrollian worldsheets requires an extra scalar ghost pair for Carroll-Weyl scaling, yielding a bcs system that alters the BRST complex and anomaly cancellation beyond the standard BMS bc treatment.
Null Strings Gauged and Reloaded, I: Null Strings Have Carroll-Weyl Gauge Symmetry
3 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
Null strings, strings with Carrollian worldsheets, are traditionally described by the Isberg-Lindstr\"om-Sundborg-Theodoridis (ILST) action, which is obtained via a tensionless limit of standard tensile strings. In a recent work, we observed that the ILST action enjoys an overlooked partial-gauge symmetry whose existence calls into question the consistency of {standard} null strings analysis found in the literature. In this paper, we show that the Carrollian geometry provides us with two Weyl scaling options, in contrast to a single Weyl scaling available for the ordinary tensile string worldsheet. Defining the null string theory by the action that realizes the two Carroll-Weyl scalings as well as the 2D diffeomorphisms as local (gauge) symmetries, we construct the new null string action. We show that the ILST action is obtained after fixing one of the two Carroll-Weyl scalings of the action that we construct, and that the residual part of this symmetry is precisely the overlooked partial-gauge symmetry. We hence clarify the Carroll-geometric origin of the overlooked symmetry and pave the way for a consistent quantization of null strings.
fields
hep-th 3years
2026 3verdicts
UNVERDICTED 3representative citing papers
Null strings exhibit an independent Carroll-Weyl gauge symmetry that necessitates an extended BMS₃ algebra of constraints.
An overlooked local symmetry in the null string action reduces physical degrees of freedom to D-3 rather than the D-2 reported in prior literature.
citing papers explorer
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Path integral quantization of null bosonic strings with Carroll-Weyl ghosts
Null bosonic string quantization on Carrollian worldsheets requires an extra scalar ghost pair for Carroll-Weyl scaling, yielding a bcs system that alters the BRST complex and anomaly cancellation beyond the standard BMS bc treatment.
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Null Strings Gauged and Reloaded, II: Consistent Classical Treatment of the Null Strings
Null strings exhibit an independent Carroll-Weyl gauge symmetry that necessitates an extended BMS₃ algebra of constraints.
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On the Consistency of Null Strings Literature: The Tale of an Overlooked Symmetry
An overlooked local symmetry in the null string action reduces physical degrees of freedom to D-3 rather than the D-2 reported in prior literature.