Results 111 to 120 of about 641,065 (281)

Photon Number Coherence in Quantum Dot‐Cavity Systems can be Enhanced by Phonons

Advanced Quantum Technologies, Volume 8, Issue 7, July 2025.
Photon number coherence (PNC) is important for quantum cryptography. Because of that, the PNC within a quantum dot‐cavity system is investigated theoretically. Phonons, which interact with the quantum dot, surprisingly do not necessarily decrease PNC. It is demonstrated that it is possible to optimize other figures of merit without significant penalty ...
Paul C. A. Hagen, Mathieu Bozzio, Moritz Cygorek, Doris E. Reiter, Vollrath M. Axt   +4 more
wiley   +1 more source

A theorem on the Riemann-Liouville integral

Mathematische Zeitschrift, 1951
1. M. RiEsz [7, w167 5, 6, 7] 1) has proved a theorem on the Rm~A~L1ovvmLE integral which includes the following as a useful special case. T h e o r e m A.
RAJAGOPAL, C.T., Parthasarathy, M.
openaire   +2 more sources

Hardy-Littlewood-Sobolev systems and related Liouville theorems

, 2014
We prove some Liouville theorems for systems of integral equations and inequalities related to weighted Hardy-Littlewood-Sobolev inequality type on $R^N$ .
L. D’Ambrosio, E. Mitidieri
semanticscholar   +1 more source

Diffusive Equilibrium: Modeling Anisotropic Maxwellian and Kappa Field Line Distributions in Io's Plasma Torus Using Multi‐Fluid and Kinetic Approaches

Journal of Geophysical Research: Space Physics, Volume 130, Issue 7, July 2025.
Abstract Modeling density distributions along Jupiter's magnetic field lines is essential for understanding the Io plasma torus, moon plasma interactions, and plasma throughout the magnetosphere. This study compares multi‐fluid and kinetic approaches to diffusive equilibrium and the effects of different plasma distribution functions and anisotropy.
Edward G. Nerney
wiley   +1 more source

Uncertainty principle for the Riemann-Liouville operator

Cubo, 2011
A Beurling-Hormander theorem's is proved for the Fourier transform connected with the Riemann-Liouville operator. Nextly, Gelfand-Shilov and Cowling-Price type theorems are established.Se demuestra el teorema de Beurling-Hormander por la transformada de ...
Khaled Hleili, Slim Omri, Lakhdar T Rachdi   +2 more
doaj  

Predictions for the Shape and Orientation of Earth's Foreshock Radiation Sources

Journal of Geophysical Research: Space Physics, Volume 130, Issue 7, July 2025.
Abstract Radio emission produced in Earth's foreshock is due to the bow shock reflecting some electrons back upstream into the foreshock, where they produce Langmuir waves and radio emissions near the electron plasma frequency fp ${f}_{p}$ and near 2fp $2{f}_{p}$.
Iver H. Cairns, Patrick Oppel
wiley   +1 more source

Conformal metrics of constant scalar curvature with unbounded volumes

Proceedings of the London Mathematical Society, Volume 131, Issue 1, July 2025.
Abstract For n⩾25$n\geqslant 25$, we construct a smooth metric g∼$\tilde{g}$ on the standard n$n$‐dimensional sphere Sn$\mathbb {S}^n$ such that there exists a sequence of smooth metrics {g∼k}k∈N$\lbrace \tilde{g}_k\rbrace _{k\in \mathbb {N}}$ conformal to g∼$\tilde{g}$ where each g∼k$\tilde{g}_k$ has scalar curvature Rg∼k≡1$R_{\tilde{g}_k}\equiv 1 ...
Liuwei Gong, Yanyan Li
wiley   +1 more source

Liouville type theorems involving fractional order systems

Advanced Nonlinear Studies
In this paper, let α be any real number between 0 and 2, we study the following semi-linear elliptic system involving the fractional Laplacian: (−Δ)α/2u(x)=f(u(x),v(x)),x∈Rn,(−Δ)α/2v(x)=g(u(x),v(x)),x∈Rn. $\begin{cases}{\left(-{\Delta}\right)}^{\alpha /2}
Liao Qiuping, Liu Zhao, Wang Xinyue
doaj   +1 more source

Geodesics in planar Poisson road random metric

Proceedings of the London Mathematical Society, Volume 131, Issue 1, July 2025.
Abstract We study the structure of geodesics in the fractal random metric constructed by Kendall from a self‐similar Poisson process of roads (that is, lines with speed limits) in R2$\mathbb {R}^2$. In particular, we prove a conjecture of Kendall stating that geodesics do not pause en route, that is, use roads of arbitrary small speed except at their ...
Guillaume Blanc, Nicolas Curien, Jonas Kahn   +2 more
wiley   +1 more source

Some Liouville Theorems for the p-Laplacian

, 2001
We present several Liouville type results for the $p$-Laplacian in $\R^N$. Suppose that $h$ is a nonnegative regular function such that $$ h(x) = a|x|^\gamma\ {\rm for}\ |x|\ {\rm large},\ a>0\ {\rm and}\ \gamma> -p.
Birindelli, I., Demengel, F.
core   +1 more source