Liouville strings in AdS3: the worldsheet story
- 1New York University
- 2Departamento de Física, Universidad de Buenos Aires, FCEN-UBA, Instituto de Física de Buenos Aires, IFIBA-CONICET
Abstract
A bstract : The worldsheet σ -model of strings on AdS ₃ with NS-NS fluxes can be equivalently described in terms of a Liouville field theory coupled to a timelike field with background charge, plus a marginal deformation. The operator that produces the deformation is non-normalizable and, from the string theory perspective, is associated to the spectral flow sector ω = −2. Its role is to control the winding number violation in scattering amplitudes. In the semiclassical (large k ) limit, the central charge of the Liouville factor tends to that of the dual CFT ₂ , namely c ≃ 6 k . This may appear very similar to what occurs in the Liouville-type description of the dual deformed orbifold CFT ₂ , where a twist-2 deformation operator dressed with a non-normalizable field also appears. Indeed, there are some similarities to that; however, there are also significant differences, which we discuss.
Related
- Breaking of integrability in elliptic deformations of AdS3 strings with mixed flux
- Black Strings and Black Holes: Worldsheet Spectra and Near-Extremal Limits
- Holographic multipartite entanglement dynamics in AdS3-Vaidya
- Boundary energy density and null propagation in global AdS3/CFT2
- A note on conserved worldsheet supercharges in heterotic pure spinor superstring
BibTeX
@article{giribet2026liouville,
title = {{Liouville strings in AdS3: the worldsheet story}},
author = {Gaston Giribet and Pedro Schmied},
journal = {Journal of High Energy Physics},
year = {2026},
month = oct,
doi = {10.1007/jhep10(2026)217},
url = {https://link.springer.com/article/10.1007/JHEP10(2026)217},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Liouville strings in AdS3: the worldsheet story
AU - Gaston Giribet
AU - Pedro Schmied
PY - 2026
DA - 2026/10/21
JO - Journal of High Energy Physics
DO - 10.1007/jhep10(2026)217
UR - https://link.springer.com/article/10.1007/JHEP10(2026)217
AB - A bstract : The worldsheet σ -model of strings on AdS ₃ with NS-NS fluxes can be equivalently described in terms of a Liouville field theory coupled to a timelike field with background charge, plus a marginal deformation. The operator that produces the deformation is non-normalizable and, from the string theory perspective, is associated to the spectral flow sector ω = −2. Its role is to control the winding number violation in scattering amplitudes. In the semiclassical (large k ) limit, the central charge of the Liouville factor tends to that of the dual CFT ₂ , namely c ≃ 6 k . This may appear very similar to what occurs in the Liouville-type description of the dual deformed orbifold CFT ₂ , where a twist-2 deformation operator dressed with a non-normalizable field also appears. Indeed, there are some similarities to that; however, there are also significant differences, which we discuss.
SN - 1029-8479
ER -