Results 11 to 20 of about 388 (83)

Holographic Description of Noncommutative Schwinger Effect

Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021
We consider the phenomenon of spontaneous pair production in the presence of an external electric field for noncommutative Yang‐Mills theories. Using Maldacena’s holographic conjecture, the threshold electric field for pair production is computed from the quark/antiquark potential for noncommutative theories.
Udit Narayan Chowdhury, Michele Arzano
wiley   +1 more source

Generalized symmetries and Noether’s theorem in QFT

Journal of High Energy Physics, 2022
We show that generalized symmetries cannot be charged under a continuous global symmetry having a Noether current. Further, only non-compact generalized symmetries can be charged under a continuous global symmetry.
Valentin Benedetti, Horacio Casini, Javier M. Magán   +2 more
doaj   +1 more source

Notes on cluster algebras and some all-loop Feynman integrals

Journal of High Energy Physics, 2021
We study cluster algebras for some all-loop Feynman integrals, including box-ladder, penta-box-ladder, and double-penta-ladder integrals. In addition to the well-known box ladder whose symbol alphabet is D 2 ≃ A 1 2 $$ {D}_2\simeq {A}_1^2 $$ , we show ...
Song He, Zhenjie Li, Qinglin Yang
doaj   +1 more source

Surface operators in superspace

Journal of High Energy Physics, 2020
We generalize the geometrical formulation of Wilson loops recently introduced in [1] to the description of Wilson Surfaces. For N = (2, 0) theory in six dimensions, we provide an explicit derivation of BPS Wilson Surfaces with non-trivial coupling to ...
C. A. Cremonini, P. A. Grassi, S. Penati
doaj   +1 more source

Wilson loops in large symmetric representations through a double-scaling limit

Journal of High Energy Physics, 2022
We derive exact formulas for circular Wilson loops in the N $$ \mathcal{N} $$ = 4 and N $$ \mathcal{N} $$ = 2* theories with gauge groups U(N) and SU(N) in the k-fold symmetrized product representation.
D. Rodriguez-Gomez, J. G. Russo
doaj   +1 more source

On the infrared divergence and global colour in N $$ \mathcal{N} $$ = 4 Yang-Mills theory

Journal of High Energy Physics, 2020
The N $$ \mathcal{N} $$ = 4 superconformal Yang-Mills theory on flat four-dimensional Minkowski space is a de-confined gauge theory in the sense that the string tension for fundamental representation coloured quarks vanishes.
Su Yu Ding, Joanna Karczmarek, Gordon W. Semenoff   +2 more
doaj   +1 more source

Exploring non-invertible symmetries in free theories

Journal of High Energy Physics, 2023
Symmetries corresponding to local transformations of the fundamental fields that leave the action invariant give rise to (invertible) topological defects, which obey group-like fusion rules.
Pierluigi Niro, Konstantinos Roumpedakis, Orr Sela   +2 more
doaj   +1 more source

Symmetry properties of Wilson loops with a Lagrangian insertion

Journal of High Energy Physics, 2022
Null Wilson loops in N $$ \mathcal{N} $$ = 4 super Yang-Mills are dual to planar scattering amplitudes. This duality implies hidden symmetries for both objects.
Dmitry Chicherin, Johannes M. Henn
doaj   +1 more source

Topology and Wilson lines: global aspects of the double copy

Journal of High Energy Physics, 2020
The Kerr-Schild double copy relates exact solutions of gauge and gravity theories. In all previous examples, the gravity solution is associated with an abelian-like gauge theory object, which linearises the Yang-Mills equations.
Luigi Alfonsi, Chris D. White, Sam Wikeley   +2 more
doaj   +1 more source

Large charges on the Wilson loop in N $$ \mathcal{N} $$ = 4 SYM. Part II. Quantum fluctuations, OPE, and spectral curve

Journal of High Energy Physics, 2022
We continue our study of large charge limits of the defect CFT defined by the half-BPS Wilson loop in planar N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills theory.
Simone Giombi, Shota Komatsu, Bendeguz Offertaler   +2 more
doaj   +1 more source