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Physics Preprint PDF DOI

Development of a compact cryogenic Penning trap with permanent magnets: An intermediate step toward the Shanghai Penning Trap

Tianhang Zhang, Jiawei Wang, Jialin Liu, Jingtian Wei, Jiaxuan Ji, Jifei Wu, Zichen Su, Yiming Xie, Liangyu Huang, Ke Yao, Yang Shen, Yaming Zou, Baoren Wei, Bingsheng Tu · 2026

Penning traps, renowned for their unparalleled precision in determining fundamental properties such as mass and magnetic moments, are cornerstone instruments in modern physics. Their applications span…

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Physics Preprint PDF DOI

Big Dipper, Help Me Find A Way -- Dip-hunting at hadron colliders

Diego A. Baron Moreno, Christoph Englert, Yvonne Peters · 2026

Destructive interference between signal and background processes poses a fundamental challenge in searches for top-philic scalar resonances, significantly reducing experimental sensitivity to well-mot…

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Mathematics Preprint PDF DOI

Nonexistence of Henkin type projections via a Wiener theorem for multipliers

Eduard Curca, Micha{l} Wojciechowski · 2026

Let $d\geq 2$, $l\geq 0$ and suppose $X$ is one of the function spaces $W^{l,1}(\mathbb{T}^{d})$, $W^{l,\infty }(\mathbb{T}^{d})$ or $C^{l}(\mathbb{T}^{d})$. We extend a result of Henkin (1967), showi…

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Physics Preprint PDF DOI

The curved jet in the young star FN Tau

M.A. Burlak, A.V. Dodin, A.V. Zharova, N.P. Ikonnikova, V.A. Kiryukhina, S.A. Lamzin, D.A. Lashin, B.S. Safonov · 2026

In the vicinity of the young star FN Tau, we have detected a microjet and four Herbig-Haro objects, whose positions and kinematics indicate the presence of a bipolar collimated outflow from the star -…

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Mathematics Preprint PDF DOI

Statistical Limit Theorems for Axiom A Diffeomorphisms: Exponential Mixing, Central Limit Theorem, and Large Deviations

Abdoulaye Thiam · 2026

We establish statistical limit theorems for equilibrium states of Axiom A diffeomorphisms, derived from the spectral gap of the Ruelle transfer operator established in Part I (Thiam2026a) and transfer…

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Mathematics Preprint PDF DOI

The Magnitude of Dominated Sets: A Pareto Compliant Indicator Grounded in Metric Geometry

Michael T.M. Emmerich · 2026

We investigate \emph{magnitude} as a new unary and strictly Pareto-compliant quality indicator for finite approximation sets to the Pareto front in multiobjective optimization. Magnitude originates in…

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Mathematics Preprint PDF DOI

$C^{\infty}$ regularity of the Alt-Phillips Functional for negative powers

Lu Chen, Jiali Lan, Yong Wu · 2026

In this paper, we study the regularity of the free boundary for minimizers of the Alt-Phillips functional with negative powers \[\mathcal{E}_{\gamma}(u)=\int_{\Omega}\frac{1}{2}|\nabla u|^2+\frac{1}{\…

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Mathematics Preprint PDF DOI

Gelfand--Kirillov dimension and mod $p$ cohomology for inner forms of $\mathrm{GL}_2$

Andrea Dotto, Bao V. Le Hung · 2026

Under standard assumptions, we compute the GK-dimension of Hecke eigenspaces in the mod $p$ cohomology of an inner form $D^\times$ of $\mathrm{GL}_2$ over a totally real field unramified at $p$, allow…

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Physics Preprint PDF DOI

Discovery of low-redshift analogues to "Little Red Dots" in DESI: A later evolutionary stage of compact LRDs?

Weiyu Ding, Xu Kong, Wei-Jian Guo, Hu Zou, Jialai Wang, Fujia Li, Hongxin Zhang, Jie Song, Jingyi Zhang, Niu Li, Wen-Xiong Li · 2026

The James Webb Space Telescope (JWST) has recently discovered a population of compact, red sources at z > 4 known as "Little Red Dots" (LRDs). They are characterized by their V-shaped continuum spectr…

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Computer Science Preprint PDF DOI

Filament: Denning-Style Information Flow Control for Rust

Jeffrey C. Ching, Quan Zhou, Danfeng Zhang · 2026

Existing language-based information-flow control (IFC) tools face a fundamental tension: Denning-style systems that track explicit and implicit flows at the variable level typically require compiler m…

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Physics Preprint PDF DOI

Experimental realisation of topological spin textures in a Penning trap

Julian Y. Z. Jee, Nihar Makadia, Joseph H. Pham, Gustavo Cafe de Miranda, Michael J. Biercuk, Athreya Shankar, Robert N. Wolf · 2026

Quantum simulation with controllable many-body platforms offers a powerful route to exploring complex phases and dynamics that are difficult to access in natural materials. Among these, topological sp…

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Mathematics Preprint PDF DOI

On a Weiss-type Almost Monotonicity Formula

Aelson Sobral · 2026

We establish a Weiss-type almost-monotonicity formula for a broad class of variable-coefficient energy functionals, assuming only minimal regularity of the coefficients. As an application, we classify…

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Engineering Preprint PDF DOI

Learning Racket-Ball Bounce Dynamics Across Diverse Rubbers for Robotic Table Tennis

Thomas Gossard · 2026

Accurate dynamic models for racket-ball bounces are essential for reliable control in robotic table tennis. Existing models typically assume simple linear models and are restricted to inverted rubbers…

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Physics Preprint PDF DOI

DREAMuS: Dark matter REsearch with Advanced Muon Source

Xiang Chen, Zejia Lu, Liangwen Chen, Jun Gao, Shao-Feng Ge, Zhanxu Hao, Yang Hu, Bingzhi Li, Cen Mo, Zhiyu Sun, Huayang Wang, Chonghao Wu, Yu Xu, Xueheng Zhang, Yulei Zhang, Liang Li · 2026

We propose DREAMuS, a fixed-target experiment at the High Intensity Heavy-Ion Accelerator Facility (HIAF), to search for muon-philic dark matter mediated by light flavor-violating bosons. DREAMuS is d…

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Physics Preprint PDF DOI

A Study of HH 270 with the James Webb Space Telescope

A. N. Ortiz Capeles, A. Noriega-Crespo, A. C. Raga, M. E. Lebron, H. Arce, J. L. Morales Ortiz, C. A. Pantoja · 2026

We present a study of the Herbig-Haro object HH 270 based on observations from the James Webb Space Telescope (JWST), Subaru Telescope, and Atacama Large Millimeter/submillimeter Array (ALMA). High-re…

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Economics & Finance Preprint PDF DOI

Identification in (Endogenously) Nonlinear SVARs Is Easier Than You Think

James A. Duffy, Sophocles Mavroeidis · 2026

We study identification in structural vector autoregressions (SVARs) in which the endogenous variables enter nonlinearly on the left-hand side of the model, a feature we term endogenous nonlinearity, …

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Mathematics Preprint PDF DOI

The two-phase Alt-Phillips problem for quasilinear operators

Yousef Alamri, Jose Miguel Urbano · 2026

We establish interior regularity and optimal growth estimates for sign-changing minimizers of the $p-$singular or $p-$degenerate quasilinear Alt--Phillips functional throughout the full range of $1<p<…

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Physics Preprint PDF DOI

Tennis-racket instability of twisted electrons

S.S. Baturin · 2026

We demonstrate that a weak nonlinear magnetic entrance edge induces a tennis-racket (Dzhanibekov) instability in the shell-resolved orbital pseudospin dynamics of twisted electrons propagating in a no…

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Physics Preprint PDF DOI

Lithium and the evolution of intermediate-mass T Tauri and Herbig stars. Rotation, accretion, and planets

I. Mendigutia, J. Campbell-White, B. Montesinos, J. Maldonado, L. Fullana-Garcia, G.M. Mirouh, G. Meeus, M. Vioque, A. Sicilia-Aguilar, M.R. Zapatero-Osorio, E. Villaver, R. Kahar · 2026

(Abridged) We contribute to our understanding of the evolution of young intermediate-mass stars by providing a comprehensive analysis of their lithium (Li) content. A sample of 71 intermediate-mass T …

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Engineering Preprint PDF DOI

Biologically Inspired Event-Based Perception and Sample-Efficient Learning for High-Speed Table Tennis Robots

Ziqi Wang, Jingyue Zhao, Xun Xiao, Jichao Yang, Yaohua Wang, Shi Xu, Lei Wang, Huadong Dai · 2026

Perception and decision-making in high-speed dynamic scenarios remain challenging for current robots. In contrast, humans and animals can rapidly perceive and make decisions in such environments. Taki…

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