Exact holographic superfluid at the Bogomolny point: transport, large charge, and Rényi entropies
Abstract
The Abelian Higgs model in AdS5, in the probe limit, is a standard holographic model of a strongly coupled superfluid, usually solved numerically. When the scalar mass saturates the Breitenlohner-Freedman bound and the quartic coupling takes the Bogomolny value, its condensed phase can be found in closed form on every static, uncharged AdS5 background with maximally symmetric spatial sections. We prove that it is linearly stable, as is any nodeless probe-limit condensate in the standard quantization with a nonnegative quartic coupling and no superflow. On each slicing it answers a different question about the dual conformal field theory. On the planar black brane it is the superfluid at all temperatures below Tc: the superfluid fraction follows the Gorter-Casimir two-fluid law exactly, and the speed and the attenuation of sound are found in closed form. In global AdS5 it describes a state of charge Q on ℝ× S3, arguably the lowest-energy one, and gives its scaling dimension in closed form at all Q, classically in the bulk. Its excitations include towers that the superfluid effective theory does not describe; they come from an infrared fixed point of the probe sector. The hyperbolic slicing gives in closed form a homogeneous hairy phase of the black holes that compute the charged Rényi entropies of a ball. Its condensate does not vanish at the entangling surface. When sourced by operators inserted there, the phase sets in at Rényi index exactly one at zero chemical potential, as found for a neutral scalar.
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BibTeX
@misc{yu2026exact,
title = {{Exact holographic superfluid at the Bogomolny point: transport, large charge, and Rényi entropies}},
author = {Siqing Yu},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.40371},
eprint = {2610.40371},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.40371},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Exact holographic superfluid at the Bogomolny point: transport, large charge, and Rényi entropies
AU - Siqing Yu
PY - 2026
DA - 2026/10/29
PB - arXiv
DO - 10.48550/arxiv.2610.40371
UR - https://arxiv.org/abs/2610.40371
AB - The Abelian Higgs model in AdS_5, in the probe limit, is a standard holographic model of a strongly coupled superfluid, usually solved numerically. When the scalar mass saturates the Breitenlohner-Freedman bound and the quartic coupling takes the Bogomolny value, its condensed phase can be found in closed form on every static, uncharged AdS_5 background with maximally symmetric spatial sections. We prove that it is linearly stable, as is any nodeless probe-limit condensate in the standard quantization with a nonnegative quartic coupling and no superflow. On each slicing it answers a different question about the dual conformal field theory. On the planar black brane it is the superfluid at all temperatures below T_c: the superfluid fraction follows the Gorter-Casimir two-fluid law exactly, and the speed and the attenuation of sound are found in closed form. In global AdS_5 it describes a state of charge Q on ℝ× S^3, arguably the lowest-energy one, and gives its scaling dimension in closed form at all Q, classically in the bulk. Its excitations include towers that the superfluid effective theory does not describe; they come from an infrared fixed point of the probe sector. The hyperbolic slicing gives in closed form a homogeneous hairy phase of the black holes that compute the charged Rényi entropies of a ball. Its condensate does not vanish at the entangling surface. When sourced by operators inserted there, the phase sets in at Rényi index exactly one at zero chemical potential, as found for a neutral scalar.
ER -