Results 21 to 30 of about 781,389 (237)
Continuum Gauge Fields from Lattice Gauge Fields [PDF]
Nucl.Phys. B404 (1993) 839-852, 1992 On the lattice some of the salient features of pure gauge theories and of gauge theories with fermions in complex representations of the gauge group seem to be lost. These features can be recovered by considering part of the theory in the continuum. The prerequisite for that is the construction of continuum gauge fields from lattice gauge fields.
arxiv +1 more source
Lattice gauge theory with fluctuating temperature
EPJ Web of Conferences, 2011 We study the possibility to implement the canonical Tsallis distribution for lattice field theory simulations. Formally, the application of the Tsallis distribution can be interpreted as introducing a fluctuating temperature.
Schram Z., Biró T.S.
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Gribov Copies and Gauge Fixing in Lattice Gauge Theories [PDF]
Nucl.Phys.Proc.Suppl. 106 (2002) 1088-1090, 2001 We address the problem of the gauge fixing versus Gribov copies in lattice gauge theories. For the Landau gauge, results show that a suitable combination of evolutionary algorithms with traditional steepest descent methods identifies the global maximum of the optimisation function.
arxiv +1 more source
Non-perturbatively gauge-fixed compact U(1) lattice gauge theory
Journal of High Energy Physics, 2017 An extensive study of the compact U(1) lattice gauge theory with a higher derivative gauge-fixing term and a suitable counter-term has been undertaken to determine the nature of the possible continuum limits for a wide range of the parameters, especially
Asit K. De, Mugdha Sarkar
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Stabilizing lattice gauge theories through simplified local pseudogenerators
Physical Review Research, 2022 The postulate of gauge invariance in nature does not lend itself directly to implementations of lattice gauge theories in modern setups of quantum synthetic matter. Unavoidable gauge-breaking errors in such devices require gauge invariance to be enforced
Jad C. Halimeh +5 more
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Abelian projection and studies of gauge-variant quantities in lattice QCD without gauge fixing [PDF]
Mod.Phys.Lett. A11 (1996) 1081-1093, 1996 We suggest a new (dynamical) Abelian projection of the lattice QCD. It contains no gauge condition imposed on gauge fields so that Gribov copying is avoided. Configurations of gauge fields that turn into monopoles in the Abelian projection can be classified in a gauge invariant way. In the continuum limit, the theory respects the Lorentz invariance.
arxiv +1 more source
Polyakov line actions from SU(3) lattice gauge theory with dynamical fermions via relative weights
EPJ Web of Conferences, 2017 We extract an effective Polyakov line action from an underlying SU(3) lattice gauge theory with dynamical fermions via the relative weights method. The centersymmetry breaking terms in the effective theory are fit to a form suggested by effective action ...
Höllwieser Roman, Greensite Jeff
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Implicit schemes for real-time lattice gauge theory
European Physical Journal C: Particles and Fields, 2018 We develop new gauge-covariant implicit numerical schemes for classical real-time lattice gauge theory. A new semi-implicit scheme is used to cure a numerical instability encountered in three-dimensional classical Yang-Mills simulations of heavy-ion ...
Andreas Ipp, David Müller
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Topology of SU(N) lattice gauge theories coupled with ℤ N 2-form gauge fields
Journal of High Energy Physics, 2023 We extend the definition of Lüscher’s lattice topological charge to the case of 4d SU(N) gauge fields coupled with ℤ N 2-form gauge fields. This result is achieved while maintaining the locality, the SU(N) gauge invariance, and ℤ N 1-form gauge ...
Motokazu Abe +4 more
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Direct Improvement of Hamiltonian Lattice Gauge Theory [PDF]
Phys.Rev. D64 (2001) 094503, 2001 We demonstrate that a direct approach to improving Hamiltonian lattice gauge theory is possible. Our approach is to correct errors in the Kogut-Susskind Hamiltonian by incorporating additional gauge invariant terms. The coefficients of these terms are chosen so that the order $a^2$ classical errors vanish. We conclude with a brief discussion of tadpole
arxiv +1 more source