Hilbert Space of Finite $N$ Multi-matrix Models

Fuente: arXiv
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Autores principales: Koch, Robert de Mello, Jevicki, Antal
Formato: Preprint
Publicado: 2025
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author Koch, Robert de Mello
Jevicki, Antal
author_facet Koch, Robert de Mello
Jevicki, Antal
contents We study the Hilbert space structure of gauge-invariant operators emergent in large-$N$ multi-matrix quantum mechanics. Building on the framework of \cite{deMelloKoch:2025ngs}, we identify a class of light single-trace operators that behave like free creation operators at low energy but saturate beyond a critical excitation level, ceasing to generate new states. This $q$-reducibility is a direct consequence of finite N trace identities and leads to a dramatic truncation of the high-energy spectrum of the emergent theory. The resulting number of independent degrees of freedom is far smaller than naïve semiclassical expectations, providing a concrete mechanism for how nonperturbative constraints shape the ultraviolet behaviour of emergent theories.
format Preprint
id arxiv_https___arxiv_org_abs_2508_11986
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Hilbert Space of Finite $N$ Multi-matrix Models
Koch, Robert de Mello
Jevicki, Antal
High Energy Physics - Theory
We study the Hilbert space structure of gauge-invariant operators emergent in large-$N$ multi-matrix quantum mechanics. Building on the framework of \cite{deMelloKoch:2025ngs}, we identify a class of light single-trace operators that behave like free creation operators at low energy but saturate beyond a critical excitation level, ceasing to generate new states. This $q$-reducibility is a direct consequence of finite N trace identities and leads to a dramatic truncation of the high-energy spectrum of the emergent theory. The resulting number of independent degrees of freedom is far smaller than naïve semiclassical expectations, providing a concrete mechanism for how nonperturbative constraints shape the ultraviolet behaviour of emergent theories.
title Hilbert Space of Finite $N$ Multi-matrix Models
topic High Energy Physics - Theory
url https://arxiv.org/abs/2508.11986