Results 41 to 50 of about 388 (83)

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

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

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

Ironing out the crease

open access: yesJournal of High Energy Physics, 2022
The crease is a surface operator folded by a finite angle along an infinite line. Several realisations of it in the 6d N $$ \mathcal{N} $$ = (2, 0) theory are studied here. It plays a role similar to the generalised quark-antiquark potential, or the cusp
Nadav Drukker, Maxime Trépanier
doaj   +1 more source

Probing the dynamics of stringy flux tubes with large R-charge

open access: yesJournal of High Energy Physics
We study the generalized cusp anomalous dimension, or quark-antiquark potential on the three-sphere, in the presence of a large R-charge L and at strong coupling.
Davide Bonomi   +4 more
doaj   +1 more source

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

open access: yesJournal of High Energy Physics, 2020
We compute the planar limit of both the free energy and the expectation value of the 1/2 BPS wilson loop for four dimensional N $$ \mathcal{N} $$ = 2 superconformal quiver theories, with a product of SU(N)s as gauge group and hi-fundamental matter ...
Bartomeu Fiol   +2 more
doaj   +1 more source

Schubert line defects in 3d GLSMs. Part I. Complete flag manifolds and quantum Grothendieck polynomials

open access: yesJournal of High Energy Physics
We construct new half-BPS line defects in 3d N = 2 $$ \mathcal{N}=2 $$ supersymmetric quiver gauge theories whose Higgs branches are complete flag manifolds X = Fl(n). Upon circle compactification, the bulk theory flows to a non-linear sigma model (NLSM)
Cyril Closset   +5 more
doaj   +1 more source

The analytic structure of the fixed charge expansion. [PDF]

open access: yesJ High Energy Phys, 2022
Antipin O   +3 more
europepmc   +1 more source

Schubert line defects in 3d GLSMs. Part II. Partial flag manifolds and parabolic quantum polynomials

open access: yesJournal of High Energy Physics
We construct Schubert line defects in the 3d N = 2 $$ \mathcal{N}=2 $$ supersymmetric gauged linear sigma model (GLSM) with target space a partial flag manifold X = Fl(k; n), generalizing our construction for complete flag manifolds given in a companion ...
Cyril Closset   +5 more
doaj   +1 more source

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