Results 51 to 60 of about 86,270 (268)

Reshetikhin's Formula for the Jones Polynomial of a Link: Feynman diagrams and Milnor's Linking Numbers

open access: yes, 1994
We use Feynman diagrams to prove a formula for the Jones polynomial of a link derived recently by N.~Reshetikhin. This formula presents the colored Jones polynomial as an integral over the coadjoint orbits corresponding to the representations assigned to
L. Rozansky, Porter R., Turaev V.
core   +1 more source

Ultra‐Stable Topological Telluride Monolayers for Next‐Generation Battery Anodes and Sulfur Hosts

open access: yesAdvanced Science, EarlyView.
This study computationally designs 2D ternary metal tellurides (HfTiTe4, ZrTiTe4, and HfZrTe4) with unique electronic environments for battery applications. These materials offer low ion diffusion barriers, ultrahigh theoretical capacities, and robust ion binding, making them promising anodes.
Shehzad Ahmed   +9 more
wiley   +1 more source

The ε-form of the differential equations for Feynman integrals in the elliptic case

open access: yesPhysics 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
doaj   +1 more source

Valence‐Engineering of CeO2 Redox Modulator Boosts the Oxygen Electrocatalysis Performance in Fe/Co Dual‐Atom Catalyst

open access: yesAdvanced 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

Developments since Kira 2.0

open access: yesSciPost 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
doaj   +1 more source

Asymptotics of Feynman Diagrams and The Mellin-Barnes Representation

open access: yes, 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

A Perspective on Interactive Theorem Provers in Physics

open access: yesAdvanced 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

End-point singularities of Feynman graphs on the light cone

open access: yes, 2002
We show that some Lorentz components of the Feynman integrals calculated in terms of the light-cone variables may contain end-point singularities which originate from the contribution of the big-circle integral in the complex k_ plane.
Anisovich   +19 more
core   +2 more sources

Introduction to Feynman integrals [PDF]

open access: yes, 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

Defect‐Free Sb‐Doping in Bi2O2Se Achieves Two‐Order‐of‐Magnitude Reduction in Saturation Intensity While Preserving High Carrier Mobility

open access: yesAdvanced Science, EarlyView.
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
wiley   +1 more source

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