Results 101 to 110 of about 86,518 (263)
Triangle diagram, distance geometry and Symmetries of Feynman Integrals [PDF]
Barak Kol, Subhajit Mazumdar
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Measure‐valued processes for energy markets
Abstract We introduce a framework that allows to employ (non‐negative) measure‐valued processes for energy market modeling, in particular for electricity and gas futures. Interpreting the process' spatial structure as time to maturity, we show how the Heath–Jarrow–Morton approach can be translated to this framework, thus guaranteeing arbitrage free ...
Christa Cuchiero +3 more
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Tropical Monte Carlo quadrature for Feynman integrals
Michael Borinsky
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This study demonstrates defect‐free states Sb3⁺ doping in Bi2O2Se, enhancing carrier mobility while reducing saturation intensity by about two orders of magnitude. First‐principles calculations and experiments reveal optimized electronic structure and improved nonlinear response.
Qingling Tang +4 more
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A New Space-Time Theory Unravels the Origins of Classical Mechanics for the Dirac Equation
The Feynman path integral plays a central role in quantum mechanics, linking classical action to propagators and relating quantum electrodynamics (QED) to Feynman diagrams.
Wei Wen
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The controlled formation of defects in large‐area CVD‐grown hBN using various irradiation methods is demonstrated. Defect type and properties depend on particle type (He+, Ne+, Ar+, neutrons, and electrons), substrate effects, and film thickness.
Ivan V. Vlassiouk +22 more
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Systematic Approximation of Multi-Scale Feynman Integrals with Two-Loop Applications [PDF]
Daniel Hulme
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Common misconceptions in crystallography and crystal optics
Six recurrent misconceptions in crystallography, some involving mineral and crystal optics, are analyzed and discussed. The explanation of these and similar misconceptions could serve as educational resources for teachers.Did you know that an X‐ray diffraction pattern is not a spectrum?
Lluís Casas
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A Feynman integral and its recurrences and associators
We determine closed and compact expressions for the ϵ-expansion of certain Gaussian hypergeometric functions expanded around half-integer values by explicitly solving for their recurrence relations.
Georg Puhlfürst, Stephan Stieberger
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Multidimensional Residues for Feynman Integrals with Generic Power of Propagators [PDF]
Jianhui Zhang
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