Results 71 to 80 of about 1,437,304 (362)
Optimisation of complex integration contours at higher order
Journal of High Energy Physics, 2021 We continue our study of contour deformation as a practical tool for dealing with the sign problem using the d-dimensional Bose gas with non-zero chemical potential as a toy model.
Francis Bursa, Michael Kroyter
doaj +1 more source
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
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
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
The Tjon band in Nuclear Lattice Effective Field Theory [PDF]
European Physical Journal A, 2018 .We explore the lattice spacing dependence in Nuclear Lattice Effective Field Theory for few-body systems up to next-to-next-to leading order in chiral effective field theory including all isospin breaking and electromagnetic effects, the complete two ...
N. Klein +4 more
semanticscholar +1 more source
Properties of the renormalized quark mass in the Schrodinger functional with a non-vanishing background field [PDF]
, 2001 We compute the current quark mass in the Schrodinger functional with a non-vanishing background field at one loop order of perturbation theory. The results are used to obtain the critical mass at which the renormalized quark mass vanishes, and some ...
Bode +4 more
core +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 +3 more
doaj +1 more source
Gauge field theories on a ⊥ lattice [PDF]
AIP Conference Proceedings, 1999 In these notes, the transverse ($\perp$) lattice approach is presented as a means to control the $k^+\to 0$ divergences in light-front QCD. Technical difficulties of both the canonical compact formulation as well as the non-compact formulation of the $\perp$ lattice motivate the color-dielectric formulation, where the link fields are linearized.
openaire +3 more sources
Lattice field theory simulations of graphene [PDF]
Physical Review B, 2009 We discuss the Monte Carlo method of simulating lattice field theories as a means of studying the low-energy effective theory of graphene. We also report on simulational results obtained using the Metropolis and Hybrid Monte Carlo methods for the chiral condensate, which is the order parameter for the semimetal-insulator transition in graphene, induced
Joaquín E. Drut, Timo A. Lähde
openaire +3 more sources
Topological Interpretations of Lattice Gauge Field Theory [PDF]
, 1997 We construct lattice gauge field theory based on a quantum group on a lattice of dimension 1. Innovations include a coalgebra structure on the connections, and an investigation of connections that are not distinguishable by observables.
Charles Frohman +3 more
core +3 more sources