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Anderson localization is fundamentally controlled by dimensionality, yet the nature of the Anderson transition in continuously tunable noninteger dimensions remains largely unexplored. Here, we introduce a family of three-dimensional…

无序系统与神经网络 · 物理学 2026-05-19 Tianyu Li , Xin Tang , Sheng Liu , Haiping Hu

Anderson localization of particles -- the complete halt of wave transport through multiple scattering and phase coherence -- is a paradigmatic manifestation of quantum interference in disordered media. In three dimensions, the scaling…

While there is plentiful evidence in all fronts of experimental cosmology for the existence of a non-vanishing dark energy (DE) density \rho_D in the Universe, we are still far away from having a fundamental understanding of its ultimate…

天体物理学 · 物理学 2011-07-19 Javier Grande , Ana Pelinson , Joan Sola

In optimization the duality gap between the primal and the dual problems is a measure of the suboptimality of any primal-dual point. In classical mechanics the equations of motion of a system can be derived from the Hamiltonian function,…

最优化与控制 · 数学 2019-11-19 Brendan O'Donoghue , Chris J. Maddison

During a crossover via a switching mechanism from one 2-body potential to another as might be applied in modeling (chemical) reactions in the vicinity of bond formation, energy violations would occur due to finite step size which determines…

计算物理 · 物理学 2007-05-23 Christopher G Jesudason

During the last decade, the deluge of multimedia data has impacted a wide range of research areas, including multimedia retrieval, 3D tracking, database management, data mining, machine learning, social media analysis, medical imaging, and…

计算机视觉与模式识别 · 计算机科学 2017-07-11 Lianli Gao , Jingkuan Song , Xingyi Liu , Junming Shao , Jiajun Liu , Jie Shao

Between a plasma and a solid target lies a positively charged sheath of several Debye lengths $\lambda_{\rm D}$ in width, typically much smaller than the characteristic length scale $L$ of the main plasma. This scale separation implies that…

等离子体物理 · 物理学 2024-11-20 Alessandro Geraldini , Stephan Brunner

The forest fire model is a reaction-diffusion model where energy, in the form of trees, is injected uniformly, and burned (dissipated) locally. We show that the spatial distribution of fires forms a novel geometric structure where the…

统计力学 · 物理学 2009-10-31 Kan Chen , Per Bak

We find exact solutions in five dimensional inhomogeneous matter dominated model with a varying cosmological constant. Adjusting arbitrary constants of integration one can also achieve acceleration in our model. Aside from an initial…

广义相对论与量子宇宙学 · 物理学 2008-11-26 D. Panigrahi , S. Chatterjee

The ability to separate and analyze chemical species with high resolution, sensitivity, and throughput is central to the development of microfluidics systems. Deterministic lateral displacement (DLD) is a continuous separation method based…

流体动力学 · 物理学 2014-04-15 Timothy J. Bowman , German Drazer , Joelle Frechette

We evaluate the collisional energy loss of a energetic fermion with mass $M$ propagating through a hot QED plasma with temperature $T$, including mass corrections, that is, keeping the mass $m$ of the fermion constituents of the plasma,…

高能物理 - 唯象学 · 物理学 2023-07-04 Marc Comadran , Cristina Manuel , Stefano Carignano

Particle tracking velocimetry in 3D is becoming an increasingly important imaging tool in the study of fluid dynamics, combustion as well as plasmas. We introduce a dynamic discrete tomography algorithm for reconstructing particle…

流体动力学 · 物理学 2015-01-23 Andreas Alpers , Peter Gritzmann , Dmitry Moseev , Mirko Salewski

We study the behavior of the vacuum in Euclidean dynamical triangulations (EDT). Algorithmic improvements and better lattice spacing determinations allow us to test the properties of the emergent de Sitter geometries of our simulations to…

高能物理 - 格点 · 物理学 2025-05-21 Mingwei Dai , Walter Freeman , Jack Laiho , Marc Schiffer , Judah Unmuth-Yockey

The dynamical mechanical analysis of blood generally uses models inspired by conventional flows, assuming scale-independent homogeneous flows and without considering fluid-surface boundary interactions. The present experimental study…

流体动力学 · 物理学 2024-09-24 Ursula Windberger , Patrick Baroni , Laurence Noirez

This paper has two main parts. The first one presents a direct path from microscopic dynamics to Debye screening, Landau damping and collisional transport. It shows there is more simplicity in microscopic plasma physics than previously…

等离子体物理 · 物理学 2014-03-05 Dominique Escande

The optimization of LHD discharges in inward-shifted configurations with $1/3$ sawtooth like activity is an open issue. These relaxation events limit the LHD performance driving a periodic plasma deconfinement. The aim of this study is to…

等离子体物理 · 物理学 2017-04-07 J. Varela , K. Y. Watanabe , S. Ohdachi , Y. Narushima

When particle speeds are large the motion of a collisionless plasma is modeled by the relativistic Vlasov Maxwell system. Large time behavior of solutions which depend on one position variable and two momentum variables is considered. In…

偏微分方程分析 · 数学 2010-01-02 Robert Glassey , Stephen Pankavich , Jack Schaeffer

In the quest for controlled thermonuclear fusion, tokamaks present complex challenges in understanding burning plasma dynamics. This study introduces a multi-region multi-timescale transport model, employing Neural Ordinary Differential…

等离子体物理 · 物理学 2024-03-05 Zefang Liu , Weston M. Stacey

Plasma technologies are a promising way of addressing a number of challenges in combustion, ranging from stabilization and flame-holding for hypersonic vehicles, to enabling low-emissions propulsion and power. Whereas most works in the…

等离子体物理 · 物理学 2023-06-13 Carmen Guerra-Garcia , Colin A. Pavan

New unification theories predict Large Extra Dimensions (LEDs). If that is the case, gravity would be stronger at short ranges than what Newtonian gravity predicts. LEDs could also have effects at atomic level. In this paper we propose a…

广义相对论与量子宇宙学 · 物理学 2009-11-13 Li zhigang , Wei-Tou Ni , Antonio Pulido Paton