Detailed Information on Publication Record
2023
Approximate treatment of noncommutative curvature in quartic matrix model
PREKRAT, D., D. RANKOVIĆ, N. K. TODOROVIĆ-VASOVIĆ, Samuel KOVÁČIK, J. TEKEL et. al.Basic information
Original name
Approximate treatment of noncommutative curvature in quartic matrix model
Authors
PREKRAT, D. (guarantor), D. RANKOVIĆ, N. K. TODOROVIĆ-VASOVIĆ, Samuel KOVÁČIK (703 Slovakia, belonging to the institution) and J. TEKEL
Edition
Journal of High Energy Physics, Springer, 2023, 1029-8479
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10300 1.3 Physical sciences
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 5.400 in 2022
RIV identification code
RIV/00216224:14310/23:00130418
Organization unit
Faculty of Science
UT WoS
000920666200002
Keywords in English
Matrix Models; Non-Commutative Geometry; Phase Transitions
Tags
Tags
International impact, Reviewed
Změněno: 3/4/2024 11:14, Mgr. Michal Petr
Abstract
V originále
We study a Hermitian matrix model with the standard quartic potential amended by a tr(RΦ2) term for fixed external matrix R. This is motivated by a curvature term in the truncated Heisenberg algebra formulation of the Grosse-Wulkenhaar model — a renormalizable noncommutative field theory. The extra term breaks the unitary symmetry of the action and leads, after perturbative calculation of the unitary integral, to an effective multitrace matrix model. Accompanying the analytical treatment of this multitrace approximation, we also study the model numerically by Monte Carlo simulations. The phase structure of the model is investigated, and a modified phase diagram is identified. We observe a shift of the transition line between the 1-cut and 2-cut phases of the theory that is consistent with the previous numerical simulations and also with the removal of the noncommutative phase in the Grosse-Wulkenhaar model.