Results 171 to 180 of about 305,187 (339)

Gauge-Invariant Slavnov–Taylor Decomposition for Trilinear Vertices

open access: yesUniverse
We continue the analysis of the gauge-invariant decomposition of amplitudes in spontaneously broken massive gauge theories by performing the characterization of separately gauge-invariant subsectors for amplitudes involving trilinear interaction vertices
Andrea Quadri
doaj   +1 more source

Unraveling Non‐Cubic Atomic Ordering in Surfactant‐Free AuAg Decahedral Nanoparticles by Pair Distribution Function (PDF) Analysis

open access: yesParticle &Particle Systems Characterization, EarlyView.
The atomic arrangement of few‐nm‐wide surfactant‐free noble metal (AuAg) decahedral nanoparticles is characterized using a structural refinement based on Pair Distribution Function (PDF) derived from Precession Electron Diffraction (PED). The results indicate that the measured structure is not well described by the classical Bagley body‐centered ...
Leonardo M. Corrêa   +3 more
wiley   +1 more source

Scale-Dependent Functions, Stochastic Quantization and Renormalization

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2006
We consider a possibility to unify the methods of regularization, such as the renormalization group method, stochastic quantization etc., by the extension of the standard field theory of the square-integrable functions $phi(b)in L^2({mathbb R}^d)$ to the
Mikhail V. Altaisky
doaj  

Unification of Conformal and Fuzzy Gravities With Internal Interactions Resulting in SO(10) and a Possible Probe Through Stochastic Gravitational Wave Background

open access: yesFortschritte der Physik, EarlyView.
Abstract The unification of conformal and fuzzy gravities with internal interactions is based on the facts that i) the tangent group of a curved manifold and the manifold itself do not necessarily have the same dimensions and ii) both gravitational theories considered here have been formulated in a gauge theoretic way.
Gregory Patellis   +3 more
wiley   +1 more source

Corrections of Electron–Phonon Coupling for Second‐Order Structural Phase Transitions

open access: yesphysica status solidi (b), EarlyView.
The left image illustrates a weak electron–phonon coupling, while the right image depicts a strong electron–phonon coupling. The weak electron–phonon coupling interaction between the lattice and electrons is susceptible to destabilization by an increase in temperature.
Mario Graml, Kurt Hingerl
wiley   +1 more source

On the Origin of the Harmonic Term in Noncommutative Quantum Field Theory

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
The harmonic term in the scalar field theory on the Moyal space removes the UV-IR mixing, so that the theory is renormalizable to all orders. In this paper, we review the three principal interpretations of this harmonic term: the Langmann-Szabo duality ...
Axel de Goursac
doaj   +1 more source

Fundamental Properties of Heavily Ge‐Doped AlGaN Prepared via Pulsed Sputtering

open access: yesphysica status solidi (b), EarlyView.
This study explores the properties of heavily Ge‐doped AlGaN films prepared via pulsed sputtering deposition. Films with Al content below 34% exhibit higher electron concentrations than Si‐doped counterparts. The maximum carrier concentration reaches 1.8 × 1020 cm−3. Optical bandgaps are enhanced by the Burstein–Moss shift.
Aiko Naito, Kohei Ueno, Hiroshi Fujioka
wiley   +1 more source

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