Results 61 to 70 of about 565,556 (249)
Topological boundary modes in isostatic lattices [PDF]
Nature Physics, 2013 Frames, or lattices consisting of mass points connected by rigid bonds or central force springs, are important model constructs that have applications in such diverse fields as structural engineering, architecture, and materials science. The difference between the number of bonds and the number of degrees of freedom of these lattices determines the ...
Tom C. Lubensky, Charles L. Kane
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The causal order on the ambient boundary [PDF]
, 2016 We analyse the causal structure of the ambient boundary, the conformal infinity of the ambient (Poincar\'e) metric. Using topological tools we show that the only causal relation compatible with the global topology of the boundary spacetime is the ...
Antoniadis, Ignatios +2 more
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Equivalent Topologies on the Contracting Boundary [PDF]
arXiv, 2022 The contracting boundary of a proper geodesic metric space generalizes the Gromov boundary of a hyperbolic space. It consists of contracting geodesics up to bounded Hausdorff distances. Another generalization of the Gromov boundary is the $\kappa$-Morse boundary with a sublinear function $\kappa$. The two generalizations model the Gromov boundary based
arxiv
A level-set-based topology optimisation of carpet cloaking devices with the boundary element method
Mechanical Engineering Journal, 2016 We investigate a topology optimisation based on the level set method for a design problem of carpet cloaking devices. In topology optimisation of carpet cloaking devices, we need to calculate the electromagnetic response in a semi-infinite domain. We use
Kenta NAKAMOTO +3 more
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Boundary manifolds of projective hypersurfaces [PDF]
, 2005 We study the topology of the boundary manifold of a regular neighborhood of a complex projective hypersurface. We show that, under certain Hodge theoretic conditions, the cohomology ring of the complement of the hypersurface functorially determines that ...
Aaslepp +33 more
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Boundary conductance in macroscopic bismuth crystals
Nature Communications, 2022 The topology of the surface states of a bismuth crystal remains an ongoing debate. Here, the authors observe surface electric conductivity with a magnetic field parallel to the two-dimensional boundary between the three-dimensional bismuth crystal and ...
Woun Kang +4 more
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Dynamical confinement in bosonized QCD2
, 1992 In the bosonized version of two dimensional theories non trivial boundary conditions (topology) play a crucial role. They are inevitable if one wants to describe non singlet states. In abelian bosonization, color is the charge of a topological current in
A. Ferrando +31 more
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A Novel Mesh Quality Improvement Method for Boundary Elements
Journal of Applied Mathematics, 2012 In order to improve the boundary mesh quality while maintaining the essential characteristics of discrete surfaces, a new approach combining optimization-based smoothing and topology optimization is developed. The smoothing objective function is modified,
Hou-lin Liu +3 more
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Casimir Effect and Global Theory of Boundary Conditions
, 2006 The consistency of quantum field theories defined on domains with external borders imposes very restrictive constraints on the type of boundary conditions that the fields can satisfy.
Asorey, M. +2 more
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Multipartite entanglement and topology in holography
Journal of High Energy Physics, 2021 Starting from the entanglement wedge of a multipartite mixed state we describe a purification procedure which involves the gluing of several copies. The resulting geometry has non-trivial topology and a single oriented boundary for each original boundary
Jonathan Harper
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