Results 11 to 20 of about 3,164,312 (366)

Spin impurities, Wilson lines and semiclassics

open access: yesJournal of High Energy Physics, 2022
We consider line defects with large quantum numbers in conformal field theories. First, we consider spin impurities, both for a free scalar triplet and in the Wilson-Fisher O(3) model.
Gabriel Cuomo   +3 more
doaj   +1 more source

Boundary conformal field theory at large charge

open access: yesJournal of High Energy Physics, 2021
We study operators with large internal charge in boundary conformal field theories (BCFTs) with internal symmetries. Using the state-operator correspondence and the existence of a macroscopic limit, we find a non-trivial relation between the scaling ...
Gabriel Cuomo   +2 more
doaj   +1 more source

Localized magnetic field in the O(N) model

open access: yesJournal of High Energy Physics, 2022
We consider the critical O(N) model in the presence of an external magnetic field localized in space. This setup can potentially be realized in quantum simulators and in some liquid mixtures.
Gabriel Cuomo   +2 more
doaj   +1 more source

Extremal correlators and random matrix theory

open access: yesJournal of High Energy Physics, 2021
We study the correlation functions of Coulomb branch operators of four-dimensional N $$ \mathcal{N} $$ = 2 Superconformal Field Theories (SCFTs).
Alba Grassi   +2 more
doaj   +1 more source

Exceptional moduli spaces for exceptional N $$ \mathcal{N} $$ = 3 theories

open access: yesJournal of High Energy Physics, 2022
It is expected on general grounds that the moduli space of 4d N $$ \mathcal{N} $$ = 3 theories is of the form ℂ3r /Γ, with r the rank and Γ a crystallographic complex reflection group (CCRG). As in the case of Lie algebras, the space of CCRGs consists of
Justin Kaidi, Mario Martone, Gabi Zafrir
doaj   +1 more source

Spontaneously broken boosts in CFTs

open access: yesJournal of High Energy Physics, 2021
Conformal Field Theories (CFTs) have rich dynamics in heavy states. We describe the constraints due to spontaneously broken boost and dilatation symmetries in such states.
Zohar Komargodski   +3 more
doaj   +1 more source

Giant Vortices and the Regge Limit

open access: yesJournal of High Energy Physics, 2023
In recent years it has been shown that strongly coupled systems become analytically tractable in the regime of large quantum numbers, such as large spin or large charge.
Gabriel Cuomo, Zohar Komargodski
doaj   +1 more source

Stability analysis of a hyperbolic stochastic Galerkin formulation for the Aw-Rascle-Zhang model with relaxation

open access: yesMathematical Biosciences and Engineering, 2021
We investigate the propagation of uncertainties in the Aw-Rascle-Zhang model, which belongs to a class of second order traffic flow models described by a system of nonlinear hyperbolic equations. The stochastic quantities are expanded in terms of wavelet-
Stephan Gerster   +2 more
doaj   +1 more source

Phases of surface defects in Scalar Field Theories

open access: yesJournal of High Energy Physics, 2023
We study mass-type surface defects in a free scalar and Wilson-Fisher (WF) O(N) theories. We obtain exact results for the free scalar defect, including its RG flow and defect Weyl anomaly.
Avia Raviv-Moshe, Siwei Zhong
doaj   +1 more source

A counterexample to the CFT convexity conjecture

open access: yesJournal of High Energy Physics, 2023
Motivated by the weak gravity conjecture, [Phys. Rev. D 104 (2021) 126005] conjectured that in any CFT, the minimal operator dimension at fixed charge is a convex function of the charge.
Adar Sharon, Masataka Watanabe
doaj   +1 more source

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