Results 81 to 90 of about 71,268 (259)

CutTools: a program implementing the OPP reduction method to compute one-loop amplitudes

open access: yes, 2008
We present a program that implements the OPP reduction method to extract the coefficients of the one-loop scalar integrals from a user defined (sub)-amplitude or Feynman Diagram, as well as the rational terms coming from the 4-dimensional part of the ...
  +26 more
core   +1 more source

α‐Al2O3 Networks on MLG Membranes for Continuous Lithium Ion Extraction from Artificial Sea Water with Enhanced Selectivity and Durability

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An α‐Al2O3‐decorated multilayer graphene membrane enables highly selective lithium ion extraction from artificial seawater via electrodialysis. The confined ion channels and competitive ion transport dynamics enhance lithium selectivity, achieving 88.9% purity and 88.6% recovery over three extraction cycles while maintaining stable ion flux.
Dae Yeop Jeong   +8 more
wiley   +1 more source

Equivalence of two contour prescriptions in superstring perturbation theory

open access: yesJournal of High Energy Physics, 2017
Conventional superstring perturbation theory based on the world-sheet approach gives divergent results for the S-matrix whenever the total center of mass energy of the incoming particles exceeds the threshold of production of any final state consistent ...
Ashoke Sen
doaj   +1 more source

A simple algorithm for automatic Feynman diagram generation

open access: yes, 2012
An algorithm for the automatic Feynman diagram (FD) generation is presented in this paper. The algorithm starts directly from the definition formula of FD, and is simple in concept and easy for coding.
Bo Xiao   +14 more
core   +1 more source

Reprogrammable All‐Photonic Molecular Logic With Ln3+ Luminescent Hybrids in Solid State

open access: yesLaser &Photonics Reviews, EarlyView.
Mario P. de‐Saralegui et al. report an Eu3⁺/Tb3⁺‐doped organic–inorganic hybrid material that enables multiple reprogrammable logic operations using only physical stimuli. Additionally, this solid‐state, all‐photonic platform represents the first example in the literature performing reversible Feynman logic operations, marking a major step toward ...
Mario P. de‐Saralegui   +4 more
wiley   +1 more source

High-precision four-loop mass and wave function renormalization in QED

open access: yesPhysics Letters B, 2020
The 4-loop QED mass and wave function renormalization constants Z2 and Zm have been evaluated in the on-shell subtraction scheme with 1100 digits of precision.
Stefano Laporta
doaj   +1 more source

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

open access: yesMaterials 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   +5 more
wiley   +1 more source

Integrated correlators in N $$ \mathcal{N} $$ = 4 super Yang-Mills and periods

open access: yesJournal of High Energy Physics, 2022
We study perturbative aspects of recently proposed integrated four-point correlators in N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills with all classical gauge groups using standard Feynman diagram computations.
Congkao Wen, Shun-Qing Zhang
doaj   +1 more source

Vertex models on Feynman diagrams [PDF]

open access: yesPhysics Letters A, 1998
10 Pages text (LaTeX), 4 eps ...
Johnston, D. A., Plecháč, P.
openaire   +2 more sources

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