Results 11 to 20 of about 1,453,006 (366)
Field Theory on a Supersymmetric Lattice [PDF]
Communications in Mathematical Physics, 1997 A lattice-type regularization of the supersymmetric field theories on a supersphere is constructed by approximating the ring of scalar superfields by an integer-valued sequence of finite dimensional rings of supermatrices and by using the differencial calculus of non-commutative geometry.
P. Presnajder, C. Klimcik, Harald Grosse
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An alternative lattice field theory formulation inspired by lattice supersymmetry
Journal of High Energy Physics, 2017 We propose an unconventional formulation of lattice field theories which is quite general, although originally motivated by the quest of exact lattice supersymmetry. Two long standing problems have a solution in this context: 1) Each degree of freedom on
Alessandro D’Adda +2 more
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Quantum field theory on a growing lattice [PDF]
Journal of High Energy Physics, 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. To obtain a well-defined theory certain restrictions must be imposed on the lattice.
Foster, Brendan Z., Jacobson, Ted
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An Alternative Lattice Field Theory Formulation Inspired by Lattice Supersymmetry-Summary of the Formulation- [PDF]
EPJ Web of Conferences, 2018 We propose a lattice field theory formulation which overcomes some fundamental diffculties in realizing exact supersymmetry on the lattice. The Leibniz rule for the difference operator can be recovered by defining a new product on the lattice, the star ...
D’Adda Alessandro +2 more
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Fractional Quantum Field Theory: From Lattice to Continuum
Advances in High Energy Physics, 2014 An approach to formulate fractional field theories on unbounded lattice space-time is suggested. A fractional-order analog of the lattice quantum field theories is considered.
Vasily E. Tarasov
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HIGH PRECISION SIMULATION TECHNIQUES FOR LATTICE FIELD THEORY [PDF]
, 1993 An overview is given over the recently developed and now widely used Monte Carlo algorithms with reduced or eliminated critical slowing down. The basic techniques are overrelaxation, cluster algorithms and multigrid methods.
Ulli Wolff
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Review on Quantum Computing for Lattice Field Theory [PDF]
Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022), 2023 In these proceedings, we review recent advances in applying quantum computing to lattice field theory. Quantum computing offers the prospect to simulate lattice field theories in parameter regimes that are largely inaccessible with the conventional Monte
L. Funcke +3 more
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Quantum mean estimation for lattice field theory [PDF]
Quantum mean estimation for lattice field theory, 2023 We demonstrate the quantum mean estimation algorithm on Euclidean lattice field theories. This shows a quadratic advantage over Monte Carlo methods which persists even in presence of a sign problem, and is insensitive to critical slowing down.
Erik J. Gustafson +2 more
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Lattice Field Theory with the Sign Problem and the Maximum Entropy Method [PDF]
Symmetry, Integrability and Geometry: Methods and Applications, 2007 Although numerical simulation in lattice field theory is one of the most effective tools to study non-perturbative properties of field theories, it faces serious obstacles coming from the sign problem in some theories such as finite density QCD and ...
Masahiro Imachi +2 more
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Stochastic normalizing flows for lattice field theory [PDF]
Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022), 2022 Stochastic normalizing flows are a class of deep generative models that combine normalizing flows with Monte Carlo updates and can be used in lattice field theory to sample from Boltzmann distributions.
M. Caselle +3 more
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