q-deformed Weil-Petersson Volumes from the Spectral Edge of DSSYK and Supersymmetric Extensions
Abstract
The q-deformed Weil-Petersson volumes of Do and Norbury are the top-degree parts of Okuyama's discrete volumes, which are defined by topological recursion on the spectral curve of the double-scaled SYK (DSSYK) model. We show that the same q-deformed volumes can be obtained from a double-scaled matrix model whose disk density is found by zooming in on the soft edges of the DSSYK density. Applying the same procedure to the hard edge of π©=1 DSSYK, we obtain candidate q-deformed π©=1 super Weil-Petersson volumes. They are polynomials of fixed degree, and they reduce to the π©=1 super Weil-Petersson volumes in a scaled qβ1 limit. These candidate volumes differ from the π©=1 volumes of Do and Norbury in (arXiv:2510.12431) up to what we call "irrelevant" contributions which exactly vanish in the scaled qβ 1 limit. Together, these results demonstrate how q-deformed volumes can be naturally associated to the spectral edges of various DSSYK models and provides an intuitive way to construct them in supersymmetric contexts.
Related
- A boundary-addition identity for Weil-Petersson volumes and their supersymmetric generalizations
- Eynard-Orantin Topological Recursions for Higher Weil-Petersson Volumes on Moduli Spaces of Super Riemann Surfaces
- A discrete analogue of π©=2 super Weil-Petersson volumes
- Ramond from Random: Weil-Petersson Volumes for Super-Riemann surfaces with NS Boundaries and R Punctures
- Uniform large-genus asymptotics of Weil-Petersson volumes
BibTeX
@misc{ahmed2026qdeformed,
title = {{$q$-deformed Weil-Petersson Volumes from the Spectral Edge of DSSYK and Supersymmetric Extensions}},
author = {Wasif Ahmed and Joydeep Naskar and Krishan Saraswat},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.13899},
eprint = {2610.13899},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.13899},
}
RIS
TY - UNPB
TI - q-deformed Weil-Petersson Volumes from the Spectral Edge of DSSYK and Supersymmetric Extensions
AU - Wasif Ahmed
AU - Joydeep Naskar
AU - Krishan Saraswat
PY - 2026
DA - 2026/10/09
PB - arXiv
DO - 10.48550/arxiv.2610.13899
UR - https://arxiv.org/abs/2610.13899
AB - The q-deformed Weil-Petersson volumes of Do and Norbury are the top-degree parts of Okuyama's discrete volumes, which are defined by topological recursion on the spectral curve of the double-scaled SYK (DSSYK) model. We show that the same q-deformed volumes can be obtained from a double-scaled matrix model whose disk density is found by zooming in on the soft edges of the DSSYK density. Applying the same procedure to the hard edge of π©=1 DSSYK, we obtain candidate q-deformed π©=1 super Weil-Petersson volumes. They are polynomials of fixed degree, and they reduce to the π©=1 super Weil-Petersson volumes in a scaled qβ1 limit. These candidate volumes differ from the π©=1 volumes of Do and Norbury in (arXiv:2510.12431) up to what we call "irrelevant" contributions which exactly vanish in the scaled qβ 1 limit. Together, these results demonstrate how q-deformed volumes can be naturally associated to the spectral edges of various DSSYK models and provides an intuitive way to construct them in supersymmetric contexts.
ER -