Results 31 to 40 of about 1,710 (86)
, 2010 In two preceding papers (Infeld and Senatorski 2003 J. Phys.: Condens. Matter 15 5865, and Senatorski and Infeld 2004 J. Phys.: Condens. Matter 16 6589) the authors confirmed Feynman's hypothesis on how circular vortices can be created from oppositely ...
A A Skorupski +11 more
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, 2018 Here we study the NP-complete $K$-SAT problem. Although the worst-case complexity of NP-complete problems is conjectured to be exponential, there exist parametrized random ensembles of problems where solutions can typically be found in polynomial time ...
Bleim, Roman +2 more
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Quickest Paths in Simulations of Pedestrians
, 2011 This contribution proposes a method to make agents in a microscopic simulation of pedestrian traffic walk approximately along a path of estimated minimal remaining travel time to their destination.
Bruns H. +11 more
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Two-loop mass splittings in electroweak multiplets: winos and minimal dark matter
, 2018 The radiatively-induced splitting of masses in electroweak multiplets is relevant for both collider phenomenology and dark matter. Precision two-loop corrections of $\mathcal{O}$(MeV) to the triplet mass splitting in the wino limit of the minimal ...
McKay, James, Scott, Pat
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A toolbox to solve coupled systems of differential and difference equations
, 2016 We present algorithms to solve coupled systems of linear differential equations, arising in the calculation of massive Feynman diagrams with local operator insertions at 3-loop order, which do {\it not} request special choices of bases.
Ablinger, Jakob +3 more
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Universality of the Small-Scale Dynamo Mechanism
, 2011 We quantify possible differences between turbulent dynamo action in the Sun and the dynamo action studied in idealized simulations. For this purpose we compare Fourier-space shell-to-shell energy transfer rates of three incrementally more complex dynamo ...
Alexakis +20 more
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Ab initio vibrational free energies including anharmonicity for multicomponent alloys
, 2019 A density-functional-theory based approach to efficiently compute numerically exact vibrational free energies - including anharmonicity - for chemically complex multicomponent alloys is developed. It is based on a combination of thermodynamic integration
Duff, Andrew Ian +7 more
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Computing for Perturbative QCD - A Snowmass White Paper
, 2013 We present a study on high-performance computing and large-scale distributed computing for perturbative QCD calculations.Comment: 21 pages, 5 ...
, +29 more
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, 2014 At low temperatures, some lattice spin models with simple ferromagnetic or antiferromagnetic interactions (for example nearest-neighbour interaction being isotropic in spin space on a bipartite three-dimensional lattice) produce orientationally ordered ...
Chamati, H., Romano, S.
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Fast integral equation methods for the Laplace-Beltrami equation on the sphere [PDF]
, 2013 Integral equation methods for solving the Laplace-Beltrami equation on the unit sphere in the presence of multiple "islands" are presented. The surface of the sphere is first mapped to a multiply-connected region in the complex plane via a stereographic ...
A. Kropinski +2 more
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