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We extensively explore three different aspects of Born-Infeld (BI) type nonlinear $U(1)$ gauge-invariant modifications of Maxwell's classical electrodynamics (also known as BI-type nonlinear electrodynamics) and bring some new perspectives…

高能物理 - 理论 · 物理学 2022-07-27 Ali Dehghani , Mohammad Reza Setare , Soodeh Zarepour

In this article, we study scaling laws for singularly perturbed two-well energies with prescribed Dirichlet boundary data in settings where the wells and/or the boundary data are incompatible. Our main focus is the geometrically linear…

偏微分方程分析 · 数学 2025-12-16 Noah Piemontese-Fischer

We study massive $2 \to 2$ scattering of identical scalar particles in spacetime dimensions 3 to 11 using non-perturbative S-matrix bootstrap techniques. Treating $d$ as a continuous parameter, we compute two-sided numerical bounds on…

高能物理 - 理论 · 物理学 2026-01-01 Mehmet Asim Gumus , Simon Metayer , Piotr Tourkine

Energy conservations are studied for inhomogeneous incompressible and compressible Euler equations with general pressure law in a torus or a bounded domain. We provide sufficient conditions for a weak solution to conserve the energy. By…

偏微分方程分析 · 数学 2019-09-23 Quoc-Hung Nguyen , Phuoc-Tai Nguyen , Bao Quoc Tang

Quantitative isoperimetric inequalities for anisotropic surface energies are shown where the isoperimetric deficit controls both the Fraenkel asymmetry and a measure of the oscillation of the boundary with respect to the boundary of the…

偏微分方程分析 · 数学 2016-03-29 Robin Neumayer

Commonly used semilocal density functional approximations for the exchange-correlation energy fail badly when the true two dimensional limit is approached. We show, using a quasi-two-dimensional uniform electron gas in the infinite barrier…

材料科学 · 物理学 2015-05-13 Lucian A. Constantin

In contrast to almost all anisotropic superconductors, the upper critical field of URu$_{2}$Si$_{2}$ is larger when the field is oriented along the less conducting direction. We present a study of resistivity and Seebeck coefficient…

强关联电子 · 物理学 2010-01-21 Zengwei Zhu , Elena Hassinger , Zhu'an Xu , Dai Aoki , Jacques Flouquet , Kamran Behnia

We study the anisotropy in the arrival directions of PAO UHECRs, using the point source correlational angular distance distribution. The result shows that the anisotropy is characterized by one prominent excess region and one void region.…

高能天体物理现象 · 物理学 2015-06-12 Hang Bae Kim

We consider a geodesic $\gamma$ of length $2L$ in an oriented Riemannian manifold $(\mathcal M, g)$ and a thin tube $\Omega^*_h$ around $\gamma$ of radius $h$. We study an 'elastic' energy per unit volume $E_h(u)$ of maps $u$ from…

偏微分方程分析 · 数学 2025-12-02 Milan Kroemer , Stefan Müller

Energy correlations characterize the energy flux through detectors at infinity produced in a collision event. Remarkably, in holographic conformal field theories, they probe high-energy gravitational scattering in the dual anti-de Sitter…

高能物理 - 理论 · 物理学 2024-04-24 Hao Chen , Robin Karlsson , Alexander Zhiboedov

In this paper I consider the inverse boundary value problem for a quasilinear, anisotropic, elliptic equation of the form $\nabla\cdot(\gamma\nabla u+|\nabla u|^{p-2}\nabla u)=0$, where $\gamma$ is a smooth, matrix valued, function with a…

偏微分方程分析 · 数学 2024-06-24 Cătălin I. Cârstea

We investigate experimentally the influence of a background rotation on the energy transfers in decaying grid turbulence. The anisotropic energy flux density, ${\bf F} ({\bf r}) = < \delta {\bf u}\,(\delta {\bf u})^2 >$, where $\delta {\bf…

流体动力学 · 物理学 2012-05-22 Cyril Lamriben , Pierre-Philippe Cortet , Frédéric Moisy

We investigate the energy of a theory with a unit vector field (the "aether") coupled to gravity. Both the Weinberg and Einstein type energy-momentum pseudotensors are employed. In the linearized theory we find expressions for the energy…

广义相对论与量子宇宙学 · 物理学 2014-11-17 Christopher Eling

The diagonalization of the metrical Hamiltonian of a scalar field with an arbitrary coupling with a curvature in N-dimensional homogeneous isotropic space is performed. The energy spectrum of the corresponding quasiparticles is obtained.…

广义相对论与量子宇宙学 · 物理学 2011-02-15 Yu. V. Pavlov

Massive $U(1)$ gauge theories featuring parametrically light vectors are suspected to belong in the Swampland of consistent EFTs that cannot be embedded into a theory of quantum gravity. We study four-dimensional, chiral $U(1)$ gauge…

高能物理 - 唯象学 · 物理学 2020-12-02 Nathaniel Craig , Isabel Garcia Garcia , Graham D. Kribs

We prove, under suitable conditions, a lower bound on the number of pinned distances determined by small subsets of two-dimensional vector spaces over fields. For finite subsets of the Euclidean plane we prove an upper bound for their…

组合数学 · 数学 2020-12-16 Ben Lund , Giorgis Petridis

We propose a lower limit on the size of a single discrete gravitational extra dimension in the context of an effective field theory for massive gravitons. The limit arises in this setup from the requirement that the Casimir energy density…

高能物理 - 唯象学 · 物理学 2010-11-05 Florian Bauer , Gerhart Seidl

For a closed subset $K$ of a compact metric space $A$ possessing an $\alpha$-regular measure $\mu$ with $\mu(K)>0$, we prove that whenever $s>\alpha$, any sequence of weighted minimal Riesz $s$-energy configurations…

数学物理 · 物理学 2011-11-23 D. P. Hardin , E. B. Saff , J. T. Whitehouse

Analysing the available data relative to the anisotropies of the ultra-high-energy cosmic rays (UHECR) at intermediate angular scales, we examine to what extent they can be used to constrain the origin of these particles, and what could be…

高能天体物理现象 · 物理学 2024-06-26 Denis Allard , Julien Aublin , Bruny Baret , Etienne Parizot

In this manuscript, we delve into the study of maps $u\in W^{1,2}(\Omega;\overline M)$ that minimize the Alt-Caffarelli energy functional $$ \int_\Omega (|Du|^2 + q^2 \chi_{u^{-1}(M)})\,dx, $$ under the condition that the image $u(\Omega)$…

偏微分方程分析 · 数学 2024-08-08 Alessio Figalli , André Guerra , Sunghan Kim , Henrik Shahgholian