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Results for “SINGULARITY”
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Universal location of Yang-Lee edge singularity in classic O ( N ) universality classes
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Charm-meson t -channel singularities in an expanding hadron gas
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Black hole singularity resolution in D = 2 via duality-invariant α ′ corrections
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ϒ ( 6 S ) and triangle singularity in e + e − → B 1 ( 5721 ) B ¯ → Z b ( 10610 ) π
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Detecting vortices in superconductors: Extracting one-dimensional topological singularities from a discretized complex scalar field
In type II superconductors, the dynamics of superconducting vortices determine their transport properties. In the Ginzburg-Landau theory, vortices correspond to topological defects in the complex order parameter. Extracting their precise positions and motion from discretized numerical simulation data is an important, but challenging, task. In the past, vortices have mostly been detected by analyzing the magnitude of the complex scalar field representing the order parameter and visualized by corresponding contour plots and isosurfaces. However, these methods, primarily used for small-scale simulations, blur the fine details of the vortices, scale poorly to large-scale simulations, and do not easily enable isolating and tracking individual vortices. In this paper, we present a method for exactly finding the vortex core lines from a complex order parameter field. With this method, vortices can be easily described at a resolution even finer than the mesh itself. The precise determination of the vortex cores allows the interplay of the vortices inside a model superconductor to be visualized in higher resolution than has previously been possible. Finally, by representing the field as the set of vortices, this method also massively reduces the data footprint of the simulations and provides the data structures for further analysis and feature tracking.
Locality and Unitarity of Scattering Amplitudes from Singularities and Gauge Invariance
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All-Loop Singularities of Scattering Amplitudes in Massless Planar Theories
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Deep Into the Amplituhedron: Amplitude Singularities at All Loops and Legs
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Elliptic, Yangian-Invariant “Leading Singularity”
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Singular Perturbation and Small-Signal Stability for Inverter Networks
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