Results 51 to 60 of about 1,453,006 (366)
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
doaj +1 more source
Thermal QCD in a non-uniform magnetic background
Journal 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
Approaches to the sign problem in lattice field theory [PDF]
, 2016 Quantum field theories (QFTs) at finite densities of matter generically involve complex actions. Standard Monte-Carlo simulations based upon importance sampling, which have been producing quantitative first principle results in particle physics for ...
C. Gattringer, K. Langfeld
semanticscholar +1 more source
Beta-function, Renormalons and the Mass Term from Perturbative Wilson Loops [PDF]
, 1999 Several Wilson loops on several lattice sizes are computed in Perturbation Theory via a stochastic method. Applications include: Renormalons, the Mass Term in Heavy Quark Effective Theory and (possibly) the beta-function.Comment: 3 pages, 1 eps figure ...
Burgio +8 more
core +2 more sources
RG-inspired machine learning for lattice field theory
EPJ Web of Conferences, 2018 Machine learning has been a fast growing field of research in several areas dealing with large datasets. We report recent attempts to use renormalization group (RG) ideas in the context of machine learning.
Foreman Sam +3 more
doaj +1 more source
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
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
Abelian monopole condensation in lattice gauge theories [PDF]
, 1999 We investigate the dynamics of lattice gauge theories in an Abelian monopole background field. By means of the gauge-invariant lattice Schrodinger functional we study the Abelian monopole condensation in U(1) lattice gauge theory at zero temperature and ...
't Hooft +13 more
core +2 more sources
Effective Field Theory of Interactions on the Lattice [PDF]
Few-Body Systems, 2015 We consider renormalization of effective field theory interactions by discretizing the continuum on a tight-binding lattice. After studying the one-dimensional problem, we address s-wave collisions in three dimensions and relate the bare lattice coupling constants to the continuum coupling constants.
Valiente, Manuel, Zinner, Nikolaj T.
openaire +3 more sources
Canonical simulations with worldlines: an exploratory study in $\phi^{4}_{2}$ lattice field theory [PDF]
, 2017 In this letter we explore the perspectives for canonical simulations in the worldline formulation of a lattice field theory. Using the charged $\phi^4$ field in two dimensions as an example we present the details of the canonical formulation based on ...
O. Orasch, C. Gattringer
semanticscholar +1 more source