Results 61 to 70 of about 2,468 (207)

Quantum GraviElectro Dynamics

Annalen der Physik, Volume 538, Issue 1, January 2026.
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

HARVEST: A Locality‐Enhanced Vision Transformer for Efficient Multi‐Level Grocery Classification

Engineering Reports, Volume 8, Issue 1, January 2026.
A HARVEST (Hierarchical Attention‐based Retail Vision Efficient Scalable Transformer), is proposed which is a novel lightweight transformer architecture for hierarchical grocery classification ABSTRACT Grocery product recognition faces unique challenges in distinguishing visually similar items across hierarchical categories while maintaining ...
Anuruddha Paul, Rishi Raj, Mahendra Kumar Gourisaria, Amitkumar V. Jha, Nicu Bizon   +4 more
wiley   +1 more source

Exact path integrals on half-line in quantum cosmology with a fluid clock and aspects of operator ordering ambiguity

Journal of High Energy Physics
We perform exact half-line path integral quantization of flat, homogeneous cosmological models containing a perfect fluid acting as an internal clock, in a D + 1 dimensional minisuperspace setup.
Vikramaditya Mondal, Harkirat Singh Sahota, Kinjalk Lochan   +2 more
doaj   +1 more source

Analysis of Quantum Radar Cross-Section by Canonical Quantization Method (Full Quantum Theory)

IEEE Access, 2020
This article investigates the difference between two quantum-based theories to calculate the radar cross-section (RCS). Quantum radar cross-section (QRCS) has been commonly analyzed using the dipole approximation method, and the related results show that
Ahmad Salmanogli, Dincer Gokcen
doaj   +1 more source

Lightweight Spatiotemporal Network With Channel Attention and Multi‐Branch Fusion for Short‐Term Typhoon Wind Field Prediction

Meteorological Applications, Volume 33, Issue 1, January/February 2026.
Lightweight spatiotemporal network with channel attention and multi‐branch fusion for short‐term typhoon wind field prediction. ABSTRACT Accurate short‐term prediction of typhoon 10‐m wind fields is crucial for early warning and risk reduction. We propose a lightweight spatiotemporal deep‐learning model that couples a convolutional neural network (CNN)
Jie Cui, Jun Liu, Yan Liu
wiley   +1 more source

System of harmonic oscillators in a rotationally-invariant noncommutative phase space

TASK Quarterly
Algebra with noncommutativity of coordinates and noncommutativity of momenta which is rotationally-invariant and equivalent to noncommutative algebra of the canonical type is considered.
V. M. Tkachuk, Kh. P. Gnatenko
doaj   +1 more source

Exotic Baryons in Chiral Soliton Models

Universe, 2018
We cautiously review the treatment of pentaquark exotic baryons in chiral soliton models. We consider two examples and argue that any consistent and self-contained description must go beyond the mean field approximation that only considers the classical ...
Herbert Weigel
doaj   +1 more source

FTheoryTools: Advancing Computational Capabilities for F‐Theory Research

Fortschritte der Physik, Volume 74, Issue 1, January 2026.
Abstract A primary goal of string phenomenology is to identify realistic four‐dimensional physics within the landscape of string theory solutions. In F‐theory, such solutions are encoded in the geometry of singular elliptic fibrations, whose study often requires particularly challenging and cumbersome computations.
Martin Bies, Miķelis E. Miķelsons, Andrew P. Turner   +2 more
wiley   +1 more source

First principles quantization of a non-conservative scalar field

European Physical Journal C: Particles and Fields
We present the first-principles quantization of a damped scalar field within the framework of classical action principle of non-conservative systems using doubled dynamical variables.
Kauship Saha, Sandeep Aashish
doaj   +1 more source

Which Quantum Theory Must be Reconciled with Gravity? (And What Does it Mean for Black Holes?)

Universe, 2016
We consider the nature of quantum properties in non-relativistic quantum mechanics (QM) and relativistic quantum field theories, and examine the connection between formal quantization schemes and intuitive notions of wave-particle duality.
Matthew J. Lake
doaj   +1 more source