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A missing piece is added to the Svetitsky-Yaffe conjecture. The spin model in the same universality class as the (2+1)d SU(4) theory, the 2d Ashkin-Teller model, has a line of continuously varying critical exponents. The exponents measured…

High Energy Physics - Lattice · Physics 2009-11-10 Philippe de Forcrand , Oliver Jahn

We construct matrix models for the deconfining phase transition in SU(N) gauge theories, without dynamical quarks, at a nonzero temperature T. We generalize models with zero and one free parameter to study a model with two free parameters:…

High Energy Physics - Phenomenology · Physics 2013-05-30 Adrian Dumitru , Yun Guo , Yoshimasa Hidaka , Christiaan P. Korthals Altes , Robert D. Pisarski

The 4-d SU(2) lattice gauge theory is simulated in the minimal Coulomb gauge which aims to maximize the traces of all links in three directions. Fourth-direction links are interpreted as spins in a Heisenberg-like model with varying…

High Energy Physics - Lattice · Physics 2007-05-23 Michael Grady

We generalize the `off-the-rack' AGSP$\Rightarrow$entanglement bound implication of [Arad, Landau, and Vazirani '12] from unique ground states to degenerate ground spaces. Our condition $R\Delta\le1/2$ on a $(\Delta,R)$-AGSP matches the…

Quantum Physics · Physics 2020-03-20 Nilin Abrahamsen

The non-abelian generalization of the Holdom model --{\it i.e.} a theory with two gauge fields coupled to the kinetic mixing term $g {tr}(F_{\mu \nu} (A) F_{\mu \nu} (B))$-- is considered. Contrarily to the abelian case, the group structure…

High Energy Physics - Theory · Physics 2009-11-05 J. Lopez-Sarrion , Paola Arias , J. Gamboa

In order to deepen our understanding of the nature of the deconfinement phase transition for various gauge groups, we investigate SU(4) Yang-Mills theory in 2+1 dimensions. We find that the transition is weakly first order. We perform…

High Energy Physics - Lattice · Physics 2008-11-26 Kieran Holland , Michele Pepe , Uwe-Jens Wiese

A gauge invariant procedure for extracting combined SO(3)-Z2 monopoles in positive-plaquette SU(2) lattice gauge theory is shown. When these monopoles are eliminated through a constraint, the theory deconfines for all $\beta$ on $12^4$ and…

High Energy Physics - Lattice · Physics 2007-05-23 Michael Grady

We use matrix models to characterize deconfinement at a nonzero temperature T for an SU(2) gauge theory in three spacetime dimensions. At one loop order, the potential for a constant vector potential A0 is ~T^3 times a trilogarithm function…

High Energy Physics - Phenomenology · Physics 2014-01-20 Pedro Bicudo , Robert D. Pisarski , Elina Seel

We study a class of second-order boundary-degenerate elliptic equations in two dimensions with minimal regularity assumptions. We prove a maximum principle and a Harnack inequality at the degenerate boundary, and assuming local boundedness,…

Analysis of PDEs · Mathematics 2019-12-17 Brian Weber

Spingarn's method of partial inverses and the progressive decoupling algorithm address inclusion problems involving the sum of an operator and the normal cone of a linear subspace, known as linkage problems. Despite their success, existing…

Optimization and Control · Mathematics 2025-04-02 Brecht Evens , Puya Latafat , Panagiotis Patrinos

Matrix models for the deconfining phase transition in $SU(N)$ gauge theories have been developed in recent years. With a few parameters, these models are able to reproduce the lattice results of the thermodynamic quantities in the…

High Energy Physics - Phenomenology · Physics 2014-12-01 Yun Guo

Under the same spirit of the Galileon-Horndeski theories and their more modern extensions, the generalized SU(2) Proca theory was built by demanding that its action may be free of the Ostrogradski's instability. Nevertheless, the theory…

General Relativity and Quantum Cosmology · Physics 2019-10-30 L. Gabriel Gomez , Yeinzon Rodriguez

A recently introduced method for determining the critical indices of the deconfinement transition in gauge theories, already tested for the case of 3D SU(3) pure gauge theory, is applied here to 4D SU(2) pure gauge theory. The method is…

High Energy Physics - Lattice · Physics 2009-11-07 Alessandro Papa , Carlo Vena

We report on a high statistics simulation of SU(2) pure gauge field theory at finite temperature, using Symanzik action. We determine the critical coupling for the deconfinement phase transition on lattices up to 8 x 24, using Finite Size…

High Energy Physics - Lattice · Physics 2009-10-22 Giancarlo cella , Giuseppe Curci , Raffaele Tripiccione , Andrea Vicere'

We argue that in the quantum motion of a scalar particle of mass "m" on S^3_R perturbed by the trigonometric Scarf potential (Scarf I) with one internal quantized dimensionless parameter, \ell, the 3D orbital angular momentum, and another,…

High Energy Physics - Phenomenology · Physics 2015-02-09 A. Pallares-Rivera , F. de J. Rosales-Aldape , M. Kirchbach

The deconfinement transition in SU(4) lattice gauge theory is studied on N_s^3 X N_t lattices with N_s = 8-16 and N_t = 4-8 using a modified Wilson action which is expected to have no bulk transitions. The peak of susceptibility \chi_{|L|}…

High Energy Physics - Lattice · Physics 2007-05-23 Rajiv V. Gavai

We present a lattice study of the equation of state in Yang-Mills theory based on the exceptional G(2) gauge group. As is well-known, at zero temperature this theory shares many qualitative features with real-world QCD, including the…

High Energy Physics - Lattice · Physics 2015-03-16 Mattia Bruno , Michele Caselle , Marco Panero , Roberto Pellegrini

We study non-perturbatively five-dimensional SU(2) gauge theories by means of the mean-field expansion on the lattice. On the anisotropic torus we show that a continuum limit can be defined where the anisotropy is a relevant parameter. The…

High Energy Physics - Lattice · Physics 2011-03-23 Francesco Knechtli , Nikos Irges , Antonio Rago

We use an effective matrix model to study deconfinement in a pure SU(Nc) gauge theory, without quarks, in d=2+1 dimensions. Expanding about a constant background A0 field we construct an effective potential for the eigenvalues of the…

High Energy Physics - Phenomenology · Physics 2014-04-23 Pedro Bicudo , Robert D. Pisarski , Elina Seel

We explore the consequences of promoting bilinear R-parity violation, usually formulated in the minimal supersymmetric standard model framework, to a supersymmetric SU(5) grand unified theory. We observe that the limits on proton decay and…

High Energy Physics - Phenomenology · Physics 2015-09-07 Najimuddin Khan , Subhendu Rakshit , Amitava Raychaudhuri