Results 31 to 40 of about 272,661 (254)

Tensor renormalization group study of two-dimensional U(1) lattice gauge theory with a θ term

open access: yesJournal of High Energy Physics, 2020
We make an analysis of the two-dimensional U(1) lattice gauge theory with a θ term by using the tensor renormalization group. Our numerical result for the free energy shows good consistency with the exact one at finite coupling constant.
Yoshinobu Kuramashi, Yusuke Yoshimura
doaj   +1 more source

Relativistic-invariant formulation of the NREFT three-particle quantization condition

open access: yesJournal of High Energy Physics, 2022
A three-particle quantization condition on the lattice is written down in a manifestly relativistic-invariant form by using a generalization of the non-relativistic effective field theory (NREFT) approach.
Fabian Müller   +3 more
doaj   +1 more source

CONNECTIONS of the LIOUVILLE MODEL and XXZ SPIN CHAIN [PDF]

open access: yes, 1995
The quantum theory of the Liouville model with imaginary field is considered using the quantum inverse scattering method. An integrable structure with nontrivial spectral parameter dependence is developed for lattice Liouville theory by scaling the $L ...
Affleck   +46 more
core   +2 more sources

On the three-particle analog of the Lellouch-Lüscher formula

open access: yesJournal of High Energy Physics, 2021
Using non-relativistic effective field theory, we derive a three-particle analog of the Lellouch-Lüscher formula at the leading order. This formula relates the three-particle decay amplitudes in a finite volume with their infinite-volume counterparts and,
Fabian Müller, Akaki Rusetsky
doaj   +1 more source

Review of lattice studies of resonances [PDF]

open access: yes, 2012
I review recent progress in extracting resonance parameters using lattice field theory, with an emphasis on determining hadron resonances from lattice quantum chromodynamics.
Mohler, Daniel
core   +3 more sources

Tensor polarizability of the vector mesons from SU(3) lattice gauge theory

open access: yesJournal of High Energy Physics, 2018
The magnetic dipole polarizabilities of the vector ρ 0 and ρ ± mesons in SU(3) pure gauge theory are calculated in the article. Based on this the authors explore the contribution of the dipole magnetic polarizabilities to the tensor polarization of the ...
E. V. Luschevskaya   +4 more
doaj   +1 more source

Thermal QCD in a non-uniform magnetic background

open access: yesJournal of High Energy Physics, 2023
Off-central heavy-ion collisions are known to feature magnetic fields with magnitudes and characteristic gradients corresponding to the scale of the strong interactions.
B. B. Brandt   +5 more
doaj   +1 more source

Isospin breaking corrections to meson masses and the hadronic vacuum polarization: a comparative study

open access: yesJournal of High Energy Physics, 2017
We calculate the strong isospin breaking and QED corrections to meson masses and the hadronic vacuum polarization in an exploratory study on a 64 × 243 lattice with an inverse lattice spacing of a −1 = 1.78 GeV and an isospin symmetric pion mass of m π =
P. Boyle   +6 more
doaj   +1 more source

Lattice Wess-Zumino-Witten Model and Quantum Groups [PDF]

open access: yes, 1992
Quantum groups play a role of symmetries of integrable theories in two dimensions. They may be detected on the classical level as Poisson-Lie symmetries of the corresponding phase spaces.
Alekseev   +45 more
core   +2 more sources

QUASI-TOPOLOGICAL QUANTUM FIELD THEORIES AND ℤ2 LATTICE GAUGE THEORIES [PDF]

open access: yesInternational Journal of Modern Physics A, 2012
We consider a two-parameter family of ℤ2 gauge theories on a lattice discretization [Formula: see text] of a three-manifold [Formula: see text] and its relation to topological field theories. Familiar models such as the spin-gauge model are curves on a parameter space Γ.
Ferreira, Miguel J. B.   +2 more
openaire   +2 more sources

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