Results 51 to 60 of about 86,518 (263)
Maximal transcendental weight contribution of scattering amplitudes
Journal of High Energy Physics, 2022 Feynman integrals in quantum field theory evaluate to special functions and numbers that are usefully described by the notion of transcendental weight. In this paper, we propose a way of projecting a given dimensionally-regularised Feynman integral, for ...
Johannes M. Henn +1 more
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Why we need Non absolute integral in place of Lebesgue integral?
Dera Natung Government College Research Journal, 2021 In this survey note we discuss about non absolute integrable functions and we put our view about the question: Why we need Non absolute integral in place of Lebesgue integral?
Hemanta Kalita, Bipan Hazarika
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Asymptotics of Feynman Diagrams and The Mellin-Barnes Representation
, 2005 It is shown that the integral representation of Feynman diagrams in terms of the traditional Feynman parameters, when combined with properties of the Mellin--Barnes representation and the so called {\it converse mapping theorem}, provide a very simple ...
Appell +31 more
core +3 more sources
Advanced Science, EarlyView.Valence‐engineering of CeO2 redox modulator can remove the highly oxidative by‐products and accelerate the oxidation state transitions of Co/Fe centers in FeCo dual‐atom catalyst during oxygen reduction/evolution electrocatalysis. Therefore, the stability and activity issues are resolved, significantly enhancing the overall performance when used as an ...
Hengqi Liu +10 more
wiley +1 more source
The ε-form of the differential equations for Feynman integrals in the elliptic case
Physics Letters B, 2018 Feynman integrals are easily solved if their system of differential equations is in ε-form. In this letter we show by the explicit example of the kite integral family that an ε-form can even be achieved, if the Feynman integrals do not evaluate to ...
Luise Adams, Stefan Weinzierl
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SciPost Physics Proceedings, 2022 Last year we released version 2.0 of the Feynman integral reduction program Kira. In this contribution we first report on changes and new features since then and, secondly, on new features for upcoming releases.
Fabian Lange, Philipp Maierhöfer, Johann Usovitsch
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A Perspective on Interactive Theorem Provers in Physics
Advanced Science, EarlyView.Into an interactive theorem provers (ITPs), one can write mathematical definitions, theorems and proofs, and the correctness of those results is automatically checked. This perspective goes over the best usage of ITPs within physics and motivates the open‐source community run project PhysLean, the aim of which is to be a library for digitalized physics
Joseph Tooby‐Smith
wiley +1 more source
Advanced Science, EarlyView.High‐throughput screening led to the identification of 67 Z‐scheme heterojunctions (comprising 2D magnetic transition metal halides and non‐magnetic transition metal chalcogenides). For CrI3/MoTe2 and CrI3/WTe2, electronic structure analysis demonstrated that synergistic crystallographic point group and built‐in electric field effects generate a ...
Hongyang Ren +8 more
wiley +1 more source
Introduction to Feynman integrals [PDF]
, 2013 43 pages, lectures given at the summer school "Geometric and Topological Methods for Quantum Field Theory", July 2009, Villa de Leyva ...
openaire +2 more sources
Advanced Energy and Sustainability Research, EarlyView.Rational defect engineering in Co‐doped NiO nanostructures, synthesized via a sustainable green route, enables precise bandgap modulation and defect‐state tailoring. Combined experimental–density functional theory analysis identifies 15% Co doping as the optimal threshold for maximizing photocatalytic degradation, photothermal response, and hydrogen ...
Sumayya M. Ansari +8 more
wiley +1 more source