Results 41 to 50 of about 271,677 (330)

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

Journal 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

Reconstructing parton distribution functions from Ioffe time data: from Bayesian methods to neural networks

Journal of High Energy Physics, 2019
The computation of the parton distribution functions (PDF) or distribution amplitudes (DA) of hadrons from first principles lattice QCD constitutes a central open problem in high energy nuclear physics.
Joseph Karpie, Kostas Orginos, Alexander Rothkopf, Savvas Zafeiropoulos   +3 more
doaj   +1 more source

Real-time spin systems from lattice field theory

Journal of High Energy Physics, 2023
We construct a lattice field theory method for computing the real-time dynamics of spin systems in a thermal bath. This is done by building on previous work of Takano with Schwinger-Keldysh and functional differentiation techniques. We derive a Schwinger-
Neill C. Warrington
doaj   +1 more source

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

, 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, Alcaraz, Andrews, Babelon, Babelon, Belavin, Bexter, Blöte, Bogoliubov, Cardy, Curtright, de Vega, de Vega, Dzhordzadze, Faddeev, Faddeev, Faddeev, Faddeev, Faddeev, Faddeev, Faddeev, Friedan, Gervais, Gervais, Gervais, Gervais, Gervais, Huse, Izergin, Izergin, Jüttner, Karowski, Klümper, Klümper, Ludvig D. Faddeev, Olav Tirkkonen, Polyakov, Seiberg, Takahashi, Takhtajan, Takhtajan, Tarasov, Verlinde, Volkov, Volkov, Woynarowich, Woynarowich   +46 more
core   +2 more sources

Review of lattice studies of resonances [PDF]

, 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

The flavor dependence of m ϱ /f π

Journal of High Energy Physics, 2019
We calculate the m ϱ /f π ratio in the chiral and continuum limit for SU(3) gauge theory coupled to N f = 2, 3, 4, 5, 6 fermions in the fundamental representation. Keeping all systematic effects under full control we find no statistically significant N f
Daniel Nogradi, Lorinc Szikszai
doaj   +1 more source

Bayesian Inference for Contemporary Lattice Quantum Field Theory [PDF]

Proceedings of The 40th International Symposium on Lattice Field Theory — PoS(LATTICE2023)
Comment: 10 pages, 6 figures, 40th International Symposium on Lattice Field ...
Julien Frison
openalex   +3 more sources

Computational Quantum Field Theory. Part II: Lattice Gauge Theory [PDF]

Computers in Physics, 1994
J Potvin, Harvey Gould, Jan Tobochnik
openalex   +2 more sources

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

Journal 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, Jin-Yi Pang, Akaki Rusetsky, Jia-Jun Wu   +3 more
doaj   +1 more source

Moments of Ioffe time parton distribution functions from non-local matrix elements

Journal of High Energy Physics, 2018
We examine the relation of moments of parton distribution functions to matrix elements of non-local operators computed in lattice quantum chromodynamics.
Joseph Karpie, Kostas Orginos, Savvas Zafeiropoulos   +2 more
doaj   +1 more source