Results 21 to 30 of about 119,004,352 (259)

Complementary projection defects and decomposition

open access: yesJournal of High Energy Physics, 2021
As put forward in [1] topological quantum field theories can be projected using so-called projection defects. The projected theory and its correlation functions can be completely realized within the unprojected one.
Fabian Klos, Daniel Roggenkamp
doaj   +1 more source

Localization of Gauge Theories on the Three-Sphere [PDF]

open access: yes, 2012
We describe the application of localization techniques to the path integral for supersymmetric gauge theories in three dimensions. The localization procedure reduces the computation of the expectation value of BPS observables to a calculation in a matrix
Yaakov, Itamar, Itamar Yaakov
core   +1 more source

Conformal field theories in fractional dimensions [PDF]

open access: yes, 2014
We study the conformal bootstrap in fractional space-time dimensions, obtaining rigorous bounds on operator dimensions. Our results show strong evidence that there is a family of unitary conformal field theories connecting the 2D Ising model, the 3D ...
Vichi A.   +5 more
core   +2 more sources

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

Localization and Dualities in Three Dimensional Superconformal Field Theories [PDF]

open access: yes, 2012
In this thesis we apply the technique of localization to three-dimensional N=2 superconformal field theories. We consider both theories which are exactly superconformal, and those which are believed to flow to nontrivial superconformal fixed points, for
Willett, Brian M.
core   +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

Scattering Amplitudes of Massive N=2 Gauge Theories in Three Dimensions [PDF]

open access: yes, 2014
We study the scattering amplitudes of mass-deformed Chern-Simons theories and Yang-Mills-Chern-Simons theories with N=2 supersymmetry in three dimensions. In particular, we derive the on-shell supersymmetry algebras which underlie the scattering matrices
Agarwal, Abhishek   +6 more
core   +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

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

Entanglement content of quantum particle excitations. Part II. Disconnected regions and logarithmic negativity

open access: yesJournal of High Energy Physics, 2019
In this paper we study the increment of the entanglement entropy and of the (replica) logarithmic negativity in a zero-density excited state of a free massive bosonic theory, compared to the ground state.
Olalla A. Castro-Alvaredo   +3 more
doaj   +1 more source

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