Results 41 to 50 of about 517,280 (335)
Graphene, Lattice Field Theory and Symmetries [PDF]
Journal of Mathematical Physics, 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 first nearest neighbor sites of the lattice \documentclass[12pt]{minimal}\begin{document}$\mathcal {L}_{
Drissi, L. B. +2 more
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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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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
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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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Lattice gas models derived from effective field theory
, 2004 We start from a low-energy effective field theory for interacting fermions on the lattice and expand in the hopping parameter to derive the nearest-neighbor interactions for a lattice gas model.
Hamilton, Matthew +2 more
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Journal of High Energy Physics, 2019 There exist two methods to study two-baryon systems in lattice QCD: the direct method which extracts eigenenergies from the plateaux of the temporal correlation function and the HAL QCD method which extracts observables from the non-local potential ...
The HAL QCD collaboration +9 more
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On the three-particle analog of the Lellouch-Lüscher formula
Journal of High Energy Physics, 2021 Using non-relativistic effective field theory, we derive a three-particle analog of the Lellouch-Lüscher formula at the leading order. This formula relates the three-particle decay amplitudes in a finite volume with their infinite-volume counterparts and,
Fabian Müller, Akaki Rusetsky
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Quantum field theory on a growing lattice
, 2004 We construct the classical and canonically quantized theories of a massless scalar field on a background lattice in which the number of points--and hence the number of modes--may grow in time.
A.R. Daughton +17 more
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Quark number susceptibility of high temperature and finite density QCD [PDF]
, 2007 We utilize lattice simulations of the dimensionally reduced effective field theory (EQCD) to determine the quark number susceptibility of QCD at high temperature ($T>2T_c$). We also use analytic continuation to obtain results at finite density.
Hietanen, Ari, Rummukainen, Kari
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Lattice supersymmetry and topological field theory [PDF]
Nuclear Physics B - Proceedings Supplements, 2003 It is known that certain theories with extended supersymmetry can be discretized in such a way as to preserve an exact fermionic symmetry. In the simplest model of this kind, we show that this residual supersymmetric invariance is actually a BRST symmetry associated with gauge fixing an underlying local shift symmetry. Furthermore, the starting lattice
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