Results 11 to 20 of about 438 (116)

Novel approaches to perturbative scattering amplitudes in gauge theory and gravity [PDF]

, 2009
PhDScattering amplitudes of massless quanta play a crucial role in the calculation of cross sections for multi-jet production at hadron colliders. The framework provided by perturbative quantum field theory, based on Feynman diagrams, does not capture ...
Nasti, Adele
core   +4 more sources

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

Chaos and the reparametrization mode on the AdS2 string

Journal of High Energy Physics, 2023
We study the holographic correlators corresponding to scattering of fluctuations of an open string worldsheet with AdS2 geometry. In the out-of-time-order configuration, the correlators display a Lyapunov growth that saturates the chaos bound.
Simone Giombi, Shota Komatsu, Bendeguz Offertaler   +2 more
doaj   +1 more source

Wilson loops in the Hamiltonian formalism

, 2022
In a gauge theory, the gauge invariant Hilbert space is unchanged by the coupling to arbitrary local operators. In the presence of Wilson loops, though, the physical Hilbert space must be enlarged by adding test electric charges along the loop. I discuss
Pisarski, Robert D.
core   +1 more source

Wilson loops in circular quiver SCFTs at strong coupling

Journal of High Energy Physics, 2021
We study circular BPS Wilson loops in the N $$ \mathcal{N} $$ = 2 superconformal n-node quiver theories at large N and strong ’t Hooft coupling by using localization.
Hao Ouyang
doaj   +1 more source

Large-size expansion for triangular Wilson loops in confining gauge theories

Journal of High Energy Physics, 2020
The asymptotic behavior of Wilson loops in the large-size limit (L → ∞) in confining gauge theories with area law is controlled by effective string theory (EST).
P.V. Pobylitsa
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

Loop operators in three-dimensional N $$ \mathcal{N} $$ = 2 fishnet theories

Journal of High Energy Physics, 2020
In this work, we study the line and loop operators in three-dimensional N $$ \mathcal{N} $$ = 2 fishnet theories in detail. We construct the straight line and circular loop operators which are at least classically half-BPS.
Jun-bao Wu, Jia Tian, Bin Chen
doaj   +1 more source

Free energy and phase transition of the matrix model on a plane wave [PDF]

, 2005
This is the peer reviewed version of the following article: Free energy and phase transition of the matrix model on a plane-wave, which has been published in final form at 10.1103/PhysRevD.71.065016.
Ramadanovic, B, Hadizadeh, S, Semenoff, GW, Young, D   +3 more
core   +1 more source

Precision holography for N=2∗ $$ \mathcal{N}={2}^{\ast } $$ on S 4 from type IIB supergravity

Journal of High Energy Physics, 2018
We find a new supersymmetric solution of type IIB supergravity which is holographically dual to the planar limit of the four-dimensional N=2∗ $$ \mathcal{N}={2}^{\ast } $$ supersymmetric Yang-Mills theory on S 4.
Nikolay Bobev, Friðrik Freyr Gautason, Jesse van Muiden   +2 more
doaj   +1 more source