Results 71 to 80 of about 5,291 (146)

Precision Lattice Calculation of SU(2) 't Hooft loops [PDF]

open access: yes, 2005
The [dual] string tension of a spatial 't Hooft loop in the deconfined phase of Yang-Mills theory can be formulated as the tension of an interface separating different Z_N deconfined vacua.
de Forcrand, Philippe, Noth, David
core   +1 more source

Lattice instanton action from 3D SU(2) Georgi-Glashow model

open access: yes, 2001
3D Georgi-Glashow model is studied on the lattice in the London limit in an infrared but an intermediate region before the screening appears. Abelian and instanton dominances are observed after abelian projections in a unitary gauge and roughly in the ...
Suzuki, Tsuneo, Yazawa, Tateaki
core   +1 more source

Circular Wilson loop in N $$ \mathcal{N} $$ = 2* super Yang-Mills theory at two loops and localization

open access: yesJournal of High Energy Physics, 2021
We present a two-loop calculation of the supersymmetric circular Wilson loop in the N $$ \mathcal{N} $$ = 2* super Yang-Mills theory on the four-sphere. We develop an efficient framework for computing contributing Feynman graphs that relies on using the ...
A. V. Belitsky, G. P. Korchemsky
doaj   +1 more source

String tensions in deformed Yang-Mills theory

open access: yesJournal of High Energy Physics, 2018
We study k-strings in deformed Yang-Mills (dYM) with SU(N) gauge group in the semiclassically calculable regime on ℝ3×S1 $$ {\mathbb{R}}^3\times {\mathbb{S}}^1 $$.
Erich Poppitz, M. Erfan Shalchian T.
doaj   +1 more source

The planar limit of N $$ \mathcal{N} $$ = 2 superconformal field theories

open access: yesJournal of High Energy Physics, 2020
We obtain the perturbative expansion of the free energy on S 4 for four dimensional Lagrangian N $$ \mathcal{N} $$ = 2 superconformal field theories, to all orders in the ’t Hooft coupling, in the planar limit.
Bartomeu Fiol   +2 more
doaj   +1 more source

Monopole characteristics in various Abelian gauges [PDF]

open access: yes, 1999
Renormalization group (RG) smoothing is employed on the lattice to investigate and to compare the monopole structure of the SU(2) vacuum as seen in different gauges (maximally Abelian (MAG), Polyakov loop (PG) and Laplacian gauge (LG)).
A. Hart   +58 more
core   +2 more sources

Line operators in the Standard Model

open access: yesJournal of High Energy Physics, 2017
There is an ambiguity in the gauge group of the Standard Model. The group is G = SU(3) × SU(2) × U(1)/Γ, where Γ is a subgroup of Z 6 which cannot be determined by current experiments.
David Tong
doaj   +1 more source

Semi-Abelian gauge theories, non-invertible symmetries, and string tensions beyond N-ality

open access: yesJournal of High Energy Physics, 2021
We study a 3d lattice gauge theory with gauge group U(1) N−1 ⋊ S N , which is obtained by gauging the S N global symmetry of a pure U(1) N−1 gauge theory, and we call it the semi-Abelian gauge theory.
Mendel Nguyen   +2 more
doaj   +1 more source

SO(3) versus SU(2) lattice gauge theory

open access: yes, 2002
We consider the SO(3) lattice gauge theory at weak coupling, in the Villain action. We exhibit an analytic path in coupling space showing the equivalence of the SO(3) theory with SU(2) summed over all twist sectors. This clarifies the ``mysterious phase''
A Alexandru   +16 more
core   +1 more source

A path integral formulation for particle detectors: the Unruh-DeWitt model as a line defect

open access: yesJournal of High Energy Physics, 2021
Particle detectors are an ubiquitous tool for probing quantum fields in the context of relativistic quantum information (RQI). We formulate the Unruh-DeWitt (UDW) particle detector model in terms of the path integral formalism. The formulation is able to
Ivan M. Burbano   +2 more
doaj   +1 more source

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