Results 31 to 40 of about 261,846 (326)
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
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Critical 1- and 2-point spin correlations for the O(2) model in 3d bounded domains
Journal of High Energy Physics, 2021 We study the critical properties of the 3d O(2) universality class in bounded domains through Monte Carlo simulations of the clock model. We use an improved version of the latter, chosen to minimize finite-size corrections at criticality, with 8 ...
Alessandro Galvani +2 more
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Holographic quantum states [PDF]
, 2010 We show how continuous matrix product states of quantum field theories can be described in terms of the dissipative non-equilibrium dynamics of a lower-dimensional auxiliary boundary field theory.
Frank Verstraete +5 more
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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 +2 more
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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
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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 +3 more
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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 +3 more
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Tensor polarizability of the vector mesons from SU(3) lattice gauge theory
Journal 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
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Learning lattice quantum field theories with equivariant continuous flows
SciPost Physics, 2023 We propose a novel machine learning method for sampling from the high-dimensional probability distributions of Lattice Field Theories, which is based on a single neural ODE layer and incorporates the full symmetries of the problem. We test our model on the \phi^4ϕ4 theory, showing that it systematically outperforms previously proposed flow-based ...
Gerdes, M. +4 more
openaire +5 more sources
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 +46 more
core +2 more sources