Results 71 to 80 of about 618,461 (271)

A Relativistic Coupled-Channel Formalism for the Pion Form Factor

EPJ Web of Conferences, 2010
The electromagnetic form factor of a confined quark-antiquark pair is calculated within the framework of point-form relativistic quantum mechanics. The dynamics of the exchanged photon is explicitly taken into account by treating the electromagnetic ...
Klink W.H., Fuchsberger K., Schweiger W., Biernat E.P.   +3 more
doaj   +1 more source

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

Advanced 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, Awais Ghani, Rashid Mehmood, Ahsan Ali, Naveed Hussain, Abdul Khaliq, Jun Han, Kemeng Ji, Danish Khan, Imran Muhammad   +9 more
wiley   +1 more source

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

What to Make and How to Make It: Combining Machine Learning and Statistical Learning to Design New Materials

Advanced Intelligent Discovery, EarlyView.
Combining machine learning and probabilistic statistical learning is a powerful way to discover and design new materials. A variety of machine learning approaches can be used to identify promising candidates for target applications, and causal inference can help identify potential ways to make them a reality.
Jonathan Y. C. Ting, Amanda S. Barnard
wiley   +1 more source

Quantum GraviElectro Dynamics

Annalen der Physik, EarlyView.
The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley   +1 more source

Spacetime Paths as a Whole

Quantum Reports, 2020
The mathematical similarities between non-relativistic wavefunction propagation in quantum mechanics and image propagation in scalar diffraction theory are used to develop a novel understanding of time and paths through spacetime as a whole.
Sky Nelson-Isaacs
doaj   +1 more source

Semantic primitives and compositionality: An Annual Review of Information Science and Technology (ARIST) paper

Journal of the Association for Information Science and Technology, EarlyView.
Abstract The term semantic primitives refers to a set of basic, atomic concepts from which all other (compound) concepts are constructed. It presupposes the principle of compositionality—the idea that complex items or expressions can be formed by combining simpler constituents.
Birger Hjørland
wiley   +1 more source

Unique Mixed Valence Behavior of Tantalum and Electronic Structure of the Novel P1−xTa8+xN13(X = 0.1–0.15) Using Density Functional Theory and Soft X‐Ray Spectroscopy

Chemistry–Methods, EarlyView.
An uncommon nitride featuring phosphorus surrounded by six nitrogen atoms reveals unexpected metallic behavior. Soft X‐ray spectroscopy and density functional theory uncover mixed‐valence tantalum and complex TaN bonding, unlocking new insights for future electronic and catalytic technologies.
Claude Ceniza, Monika M. Pointner, Teak D. Boyko, Wolfgang Schnick, Alexander Moewes   +4 more
wiley   +1 more source

SO(4) symmetry in hydrogen-atom-like model with spin

Results in Physics
As the simplest atom in nature, the hydrogen atom has been explored thoroughly from the perspective of non-relativistic quantum mechanics to relativistic quantum mechanics.
Xing-Yan Fan, Xiang-Ru Xie, Sheng-Ming Li, Jing-Ling Chen   +3 more
doaj   +1 more source

q-Deformed Relativistic Fermion Scattering

Advances in High Energy Physics, 2017
In this article, after introducing a kind of q-deformation in quantum mechanics, first, q-deformed form of Dirac equation in relativistic quantum mechanics is derived. Then, three important scattering problems in physics are studied.
Hadi Sobhani, Won Sang Chung, Hassan Hassanabadi   +2 more
doaj   +1 more source