Results 21 to 30 of about 37,531 (171)

A note on the S-matrix bootstrap for the 2d O(N) bosonic model

open access: yesJournal of High Energy Physics, 2018
In this work we apply the S-matrix bootstrap maximization program to the 2d bosonic O(N) integrable model which has N species of scalar particles of mass m and no bound states.
Yifei He   +2 more
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

Capacity of entanglement in local operators

open access: yesJournal of High Energy Physics, 2021
We study the time evolution of the excess value of capacity of entanglement between a locally excited state and ground state in free, massless fermionic theory and free Yang-Mills theory in four spacetime dimensions.
Pratik Nandy
doaj   +1 more source

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

Entanglement dynamics after a quench in Ising field theory: a branch point twist field approach

open access: yesJournal of High Energy Physics, 2019
We extend the branch point twist field approach for the calculation of entanglement entropies to time-dependent problems in 1+1-dimensional massive quantum field theories.
Olalla A. Castro-Alvaredo   +3 more
doaj   +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

Conformal bootstrap deformations

open access: yesJournal of High Energy Physics, 2022
We explore the space of extremal functionals in the conformal bootstrap. By recasting the bootstrap problem as a set of non-linear equations parameterized by the CFT data, we find an efficient algorithm for converging to the extremal solution ...
Nima Afkhami-Jeddi
doaj   +1 more source

Entanglement Entropy in Warped Conformal Field Theories [PDF]

open access: yes, 2016
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 ...
Castro, Alejandra   +5 more
core   +1 more source

Logarithmic negativity in quantum Lifshitz theories

open access: yesJournal of High Energy Physics, 2020
We investigate quantum entanglement in a non-relativistic critical system by calculating the logarithmic negativity of a class of mixed states in the quantum Lifshitz model in one and two spatial dimensions.
J. Angel-Ramelli   +3 more
doaj   +1 more source

BPS skyrmions of generalized Skyrme model in higher dimensions

open access: yesJournal of High Energy Physics, 2022
In this work we consider the higher dimensional Skyrme model, with spatial dimension d > 3, focusing on its BPS submodels and their corresponding features.
Emir Syahreza Fadhilla   +2 more
doaj   +1 more source

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