Results 91 to 100 of about 2,022,193 (251)
Non-equilibrium field theory [PDF]
Nucl.Phys.Proc.Suppl. 94 (2001) 61-70, 2000 I discuss various topics in relativistic non-equilibrium field theory related to high energy physics and cosmology. I focus on non-perturbative problems and how they can be treated on the lattice.
arxiv +1 more source
Progress in lattice field theory algorithms [PDF]
Nuclear Physics B - Proceedings Supplements, 1993 I present a summary of recent algorithmic developments for lattice field theories. In particular I give a pedagogical introduction to the new Multicanonical algorithm, and discuss the relation between the Hybrid Overrelaxation and Hybrid Monte Carlo algorithms.
openaire +4 more sources
Parton distribution functions from Ioffe time pseudo-distributions
Journal of High Energy Physics, 2019 In this paper, we present a detailed study of the unpolarized nucleon parton distribution function (PDF) employing the approach of parton pseudo-distribution func- tions. We perform a systematic analysis using three lattice ensembles at two volumes, with
Bálint Joó +5 more
doaj +1 more source
Journal of High Energy Physics, 2017 We derive the three-body quantization condition in a finite volume using an effective field theory in the particle-dimer picture. Moreover, we consider the extraction of physical observables from the lattice spectrum using the quantization condition.
Hans-Werner Hammer +2 more
doaj +1 more source
The chirally rotated Schrödinger functional: theoretical expectations and perturbative tests
Journal of High Energy Physics, 2016 The chirally rotated Schrödinger functional (χSF) with massless Wilson-type fermions provides an alternative lattice regularization of the Schrödinger functional (SF), with different lattice symmetries and a common continuum limit expected from ...
Mattia Dalla Brida +2 more
doaj +1 more source
Gradient flows without blow-up for Lefschetz thimbles
Journal of High Energy Physics, 2017 We propose new gradient flows that define Lefschetz thimbles and do not blow up in a finite flow time. We study analytic properties of these gradient flows, and confirm them by numerical tests in simple examples.
Yuya Tanizaki +2 more
doaj +1 more source
QEX: a framework for lattice field theories [PDF]
Proceedings of 38th International Conference on High Energy Physics — PoS(ICHEP2016), 2017 6 pages, 1 figures, presented at the 38th International Conference on High Energy Physics, August 3 - 10, 2016 ...
James C. Osborn, Xiao-Yong Jin
openaire +2 more sources
Nuclear effective field theory on the lattice [PDF]
Proceedings of The XXVI International Symposium on Lattice Field Theory — PoS(LATTICE 2008), 2009 In the low-energy region far below the chiral symmetry breaking scale (which is of the order of 1 GeV) chiral perturbation theory provides a model-independent approach for quantitative description of nuclear processes. In the two- and more-nucleon sector perturbation theory is applicable only at the level of an effective potential which serves as input
Evgeny Epelbaum +4 more
openaire +2 more sources
Truncated conformal space approach in d dimensions: A cheap alternative to lattice field theory?
, 2015 We show how to perform accurate, nonperturbative and controlled calculations in quantum field theory in d dimensions. We use the truncated conformal space approach, a Hamiltonian method which exploits the conformal structure of the UV fixed point.
Matthijs Hogervorst +2 more
semanticscholar +1 more source
Graphene, Lattice Field Theory and Symmetries [PDF]
, 2011 Borrowing ideas from tight binding model, we propose a board class of lattice field models that are classified by non simply laced Lie algebras. In the case of AN − 1 ≃ su(N) series, we show that the couplings between the quantum states living at the ...
L. B. Drissi, E. H. Saidi, M. Bousmina
semanticscholar +1 more source