Results 71 to 80 of about 86,518 (263)

Singularities of Feynman integrals

The European Physical Journal Special Topics
Journal ...
Tanay Pathak, Ramesh Sreekantan
openaire   +2 more sources

GASCAP: Accelerating Adsorption Evaluation Using Graph Voronoi Diagram and Machine Learning Method

Materials Genome Engineering Advances, EarlyView.
GASCAP achieve comprehensive evaluations of adsorption on solid surfaces in high‐throughput way. ABSTRACT Adsorption on a solid surface is a significant chemical process in the fields of gas sensors, solid catalysts, hydrogen storage materials, and ion batteries.
Wencai Yi, Jiping Xiong, Xingang Jiang, Yuqiu Zhang, Chaozheng He, Xiaobing Liu   +5 more
wiley   +1 more source

The loop-by-loop Baikov representation — Strategies and implementation

Journal of High Energy Physics
In this paper, we discuss the Baikov representation of Feynman integrals in its standard and loop-by-loop variants. The Baikov representation is a parametric representation, which has as its defining feature the fact that the integration variables are ...
Hjalte Frellesvig
doaj   +1 more source

A change of scale formula for Wiener integrals on abstract Wiener spaces

International Journal of Mathematics and Mathematical Sciences, 1994
In this paper we obtain a change of scale formula for Wiener integrals on abstract Wiener spaces. This formula is shown to hold for many classes of functions of interest in Feynman integration theory and quantum mechanics.
Il Yoo, David Skoug
doaj   +1 more source

Motivic renormalization and singularities [PDF]

, 2009
We consider parametric Feynman integrals and their dimensional regularization from the point of view of differential forms on hypersurface complements and the approach to mixed Hodge structures via oscillatory integrals.
Marcolli, Matilde
core   +2 more sources

Ray-wave duality of electromagnetic fields: a Feynman path integral approach to classical vectorial imaging [PDF]

, 2021
James Babington
openalex   +1 more source

Electronic Correlation Effects in the Response of Graphene and MoS2 Monolayers to the Impact of Highly‐Charged Ions

physica status solidi (b), EarlyView.
The response of graphene and MoS2 monolayers to highly‐charged impinging ions is investigated using nonequilibrium Green functions theory. Electronic correlations are found to have a significantly stronger influence on the ultrafast ion‐induced electron dynamics in MoS2 than in graphene.
Giorgio Lovato, Michael Bonitz, Karsten Balzer, Fabio Caruso, Jan‐Philip Joost   +4 more
wiley   +1 more source

A change of scale formula for Wiener integrals of cylinder functions on the abstract Wiener space II

International Journal of Mathematics and Mathematical Sciences, 2001
We show that for certain bounded cylinder functions of the form F(x)=μˆ((h1,x)∼,...,(hn,x)∼), x∈B where μˆ:ℝn→ℂ is the Fourier-transform of the complex-valued Borel measure μ on ℬ(ℝn), the Borel σ-algebra of ℝn with ‖μ‖
Young Sik Kim
doaj   +1 more source

Breaking Hardness–Toughness Trade‐Off in Novel (V, Nb)C Carbides via Nanoscale Phase Separation and Local‐Chemical‐Order Dislocation Network

Rare Metals, EarlyView.
ABSTRACT Transition metal carbides demonstrate exceptional mechanical properties but confront a critical hardness–toughness trade‐off. Spinodal decomposition‐mediated phase separation is an effective approach to enhance mechanical properties in carbide ceramics through high‐temperature treatment.
Zhi‐Xuan Zhang, Na Li, Guo‐Rui Chang, Zong‐Yao Zhang, Wei‐Li Wang, Chao Yuan, Wei‐Bin Zhang   +6 more
wiley   +1 more source

Calabi-Yau Feynman integrals in gravity: ε-factorized form for apparent singularities

Journal of High Energy Physics
We study a recently identified four-loop Feynman integral that contains a three-dimensional Calabi-Yau geometry and contributes to the scattering of black holes in classical gravity at fifth post-Minkowskian and second self-force order (5PM 2SF) in the ...
Hjalte Frellesvig, Roger Morales, Sebastian Pögel, Stefan Weinzierl, Matthias Wilhelm   +4 more
doaj   +1 more source