Results 21 to 30 of about 719,802 (285)

Entanglement entropy in warped conformal field theories [PDF]

open access: yesJournal of High Energy Physics, 2015
We present a detailed discussion of entanglement entropy in (1+1)-dimensional Warped Conformal Field Theories (WCFTs). We implement the Rindler method to evaluate entanglement and Renyi entropies for a single interval and along the way we interpret our ...
A. Castro, D. Hofman, N. Iqbal
semanticscholar   +1 more source

On Twistors and Conformal Field Theories from Six Dimensions [PDF]

open access: yes, 2011
We discuss chiral zero-rest-mass field equations on six-dimensional space-time from a twistorial point of view. Specifically, we present a detailed cohomological analysis, develop both Penrose and Penrose-Ward transforms, and analyse the corresponding ...
Christian Saemann, Martin Wolf
semanticscholar   +1 more source

Some lower dimensional quantum field theories reduced from Chern-Simons gauge theories [PDF]

open access: yesPhysical Review D
We study symmetry reductions in the context of Euclidean Chern-Simons gauge theories to obtain lower dimensional field theories. Symmetry reduction in certain gauge theories is a common tool for obtaining explicit soliton solutions.
Burak Oğuz, B. Tekin
semanticscholar   +1 more source

$D$-Dimensional Gravity from $(D+1)$ Dimensions [PDF]

open access: yes, 1995
We generalise Wesson's procedure, whereby vacuum $(4+1)-$dimensional field equations give rise to $(3+1)-$dimensional equations with sources, to arbitrary dimensions. We then employ this generalisation to relate the usual $(3+1)-$dimensional vacuum field
Rippl, Steve   +2 more
core   +2 more sources

Symmetry enhancement and duality walls in 5d gauge theories [PDF]

open access: yesJournal of High Energy Physics, 2020
Gauge theories in four dimensions can exhibit interesting low energy phenomena, such as infrared enhancements of global symmetry. We explore a class of 4d N\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts ...
Ivan Garozzo   +3 more
semanticscholar   +1 more source

On the hydrodynamics of unstable excitations

open access: yesJournal of High Energy Physics, 2020
The generalized hydrodynamic (GHD) approach has been extremely successful in describing the out-of-equilibrium properties of a great variety of integrable many-body quantum systems.
Olalla A. Castro-Alvaredo   +3 more
doaj   +1 more source

Carving Out the Space of 4D CFTs [PDF]

open access: yes, 2011
We introduce a new numerical algorithm based on semidefinite programming to efficiently compute bounds on operator dimensions, central charges, and OPE coefficients in 4D conformal and N=1 superconformal field theories.
Poland, David   +2 more
core   +3 more sources

Type II defects revisited

open access: yesJournal of High Energy Physics, 2018
Energy and momentum conservation in the context of a type II, purely transmitting, defect, within a single scalar relativistic two-dimensional field theory, places a severe constraint not only on the nature of the defect but also on the potentials for ...
E. Corrigan, C. Zambon
doaj   +1 more source

Light-ray moments as endpoint contributions to modular Hamiltonians

open access: yesJournal of High Energy Physics, 2021
We consider excited states in a CFT, obtained by applying a weak unitary perturbation to the vacuum. The perturbation is generated by the integral of a local operator J (n) of modular weight n over a spacelike surface passing through x = 0.
Daniel Kabat   +3 more
doaj   +1 more source

Two-Dilaton Theories in Two Dimensions from Dimensional Reduction [PDF]

open access: yes, 2000
Dimensional reduction of generalized gravity theories or string theories generically yields dilaton fields in the lower-dimensional effective theory. Thus at the level of D=4 theories and cosmology, many models contain more than just one scalar field (e ...
D. Grumiller, D. Hofmann, W. Kummer
semanticscholar   +1 more source

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