Results 61 to 70 of about 1,453,006 (366)
Lattice field theory simulations of Dirac semimetals [PDF]
, 2017 In this paper the observed Dirac semimetals Na$_3$Bi and Cd$_3$As$_2$ are studied within lattice simulation. We formulate lattice field theory with rooted staggered fermions on anisotropic lattice.
Braguta, V. V. +2 more
core +3 more sources
Journal 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
Reggeon field theory on a lattice
Physical Review D, 1975 We construct an analog model of interacting Ising spins on a lattice which has the same critical behavior as Reggeon field theory, in the physical number of dimensions. At the critical point the total and elastic cross sections have asymptotic behaviors σtot∝(lns)-γ and σel∝(lns)-2γ-z.
Cardy, J, Sugar, R
openaire +3 more sources
Renormalization in a classical lattice field theory [PDF]
Physical Review A, 1990 We formulate and describe a renormalization-group transformation for classical \ensuremath{\lambda}${\ensuremath{\varphi}}^{4}$-field theory on a lattice. The main idea is to divide the angle variables of the oscillators into the fast ones (large momenta) and the slow ones (low momenta) and to average over the fast ones.
Jochen Bartels +4 more
openaire +4 more sources
Lattice Field Theory Study of Magnetic Catalysis in Graphene [PDF]
, 2016 We discuss the simulation of the low-energy effective field theory (EFT) for graphene in the presence of an external magnetic field. Our fully nonperturbative calculation uses methods of lattice gauge theory to study the theory using a hybrid Monte Carlo
C. DeTar +2 more
semanticscholar +1 more source
Induced QCD II: numerical results
Journal of High Energy Physics, 2019 We numerically explore an alternative discretization of continuum SU(N c ) Yang-Mills theory on a Euclidean spacetime lattice, originally introduced by Budzcies and Zirnbauer for gauge group U(N c ).
Bastian B. Brandt +2 more
doaj +1 more source
More about the Grassmann tensor renormalization group
Journal of High Energy Physics, 2021 We derive a general formula of the tensor network representation for d-dimensional lattice fermions with ultra-local interactions, including Wilson fermions, staggered fermions, and domain-wall fermions.
Shinichiro Akiyama, Daisuke Kadoh
doaj +1 more source
Quantum Finite Elements for Lattice Field Theory [PDF]
, 2016 Viable non-perturbative methods for lattice quantum field theories on curved manifolds are difficult. By adapting features from the traditional finite element methods (FEM) and Regge Calculus, a new simplicial lattice Quantum Finite Element (QFE ...
R. Brower +5 more
semanticscholar +1 more source
Estimation of Thermodynamic Observables in Lattice Field Theories with Deep Generative Models.
Physical Review Letters, 2021 In this Letter, we demonstrate that applying deep generative machine learning models for lattice field theory is a promising route for solving problems where Markov chain Monte Carlo (MCMC) methods are problematic.
K. Nicoli +7 more
semanticscholar +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 +46 more
core +2 more sources