Finite-temperature phase diagram of the BMN matrix model on the lattice

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Main Authors: Jha, Raghav G., Joseph, Anosh, Schaich, David
Format: Preprint
Published: 2024
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author Jha, Raghav G.
Joseph, Anosh
Schaich, David
author_facet Jha, Raghav G.
Joseph, Anosh
Schaich, David
contents We investigate the thermal phase structure of the Berenstein--Maldacena--Nastase (BMN) matrix model using non-perturbative lattice Monte Carlo calculations. Our main analyses span three orders of magnitude in the coupling, involving systems with sizes up to $N_τ = 24$ lattice sites and SU($N$) gauge groups with $8 \leq N \leq 16$. In addition, we carry out extended checks of discretization artifacts for $N_τ \leq 128$ and gauge group SU(4). We find results for the deconfinement temperature that interpolate between the perturbative prediction at weak coupling and the large-$N$ dual supergravity calculation at strong coupling. While we confirm that the phase transition is first order for strong coupling, it appears to be continuous for weaker couplings.
format Preprint
id arxiv_https___arxiv_org_abs_2412_13407
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Finite-temperature phase diagram of the BMN matrix model on the lattice
Jha, Raghav G.
Joseph, Anosh
Schaich, David
High Energy Physics - Lattice
High Energy Physics - Theory
We investigate the thermal phase structure of the Berenstein--Maldacena--Nastase (BMN) matrix model using non-perturbative lattice Monte Carlo calculations. Our main analyses span three orders of magnitude in the coupling, involving systems with sizes up to $N_τ = 24$ lattice sites and SU($N$) gauge groups with $8 \leq N \leq 16$. In addition, we carry out extended checks of discretization artifacts for $N_τ \leq 128$ and gauge group SU(4). We find results for the deconfinement temperature that interpolate between the perturbative prediction at weak coupling and the large-$N$ dual supergravity calculation at strong coupling. While we confirm that the phase transition is first order for strong coupling, it appears to be continuous for weaker couplings.
title Finite-temperature phase diagram of the BMN matrix model on the lattice
topic High Energy Physics - Lattice
High Energy Physics - Theory
url https://arxiv.org/abs/2412.13407