physics 篇论文 | Gist.Science

Supervised Metric Regularization Through Alternating Optimization for Multi-Regime Physics-Informed Neural Networks

本文提出了一种名为 TAPINN 的拓扑感知物理信息神经网络，通过监督度量正则化构建潜在空间并采用交替优化策略，有效解决了参数化动力学系统中因谱偏差导致的模态崩溃问题，在显著降低物理残差和梯度方差的同时，以比超网络方案少 5 倍的参数量实现了更稳定的收敛。

Enzo Nicolas Spotorno, Josafat Ribeiro Leal, Antonio Augusto Frohlich2026-03-06🔬 physics

Empirical Stability Analysis of Kolmogorov-Arnold Networks in Hard-Constrained Recurrent Physics-Informed Discovery

本文实证研究了将 Kolmogorov-Arnold 网络（KAN）集成到硬约束循环物理信息架构中，发现尽管 KAN 在处理单变量多项式残差时具有一定竞争力，但其在深层配置中表现出严重的超参数脆弱性和不稳定性，且在处理乘法项（如范德波尔系统）时表现不如标准 MLP，揭示了原始 KAN 公式中加法归纳偏置在状态耦合方面的局限性。

Enzo Nicolas Spotorno, Josafat Leal Filho, Antonio Augusto Medeiros Frohlich2026-03-06🔬 physics

Magnetic excitations in the Kitaev material Na $_2$ IrO $_3$ studied by neutron scattering

该研究通过中子散射实验发现，Na $_2$ IrO $_3$ 中的低能磁激发源于反铁磁锯齿结构的布里渊区边界，且不存在类似 $\alpha$ -RuCl $_3$ 的铁磁特征激发，表明其微观模型包含反铁磁海森堡交换作用，从而揭示了两种材料中基瓦相互作用与海森堡相互作用相对符号的差异。

Alexandre Bertin, Hengdi Zhao, Gang Cao + 4 more2026-03-06🔬 physics

3d Conformal Field Theories via Fuzzy Sphere Algebra

本文通过分析投影到最低朗道能级的电子密度算符所构成的模糊球代数，验证了其满足雅可比恒等式，揭示了其在平面极限与对易极限下的不同行为，构建了 $so(3,2)$ 共形代数的显式表示，并指出基于 $so(3)$ 等变余积的扩展方式与临界模糊球模型的热力学极限存在结构性不匹配。

Luisa Eck, Zhenghan Wang2026-03-06🔬 physics

A structure-preserving discretisation of SO(3)-rotation fields for finite Cosserat micropolar elasticity

本文提出了一种名为 $\Gamma$ -SPIN 的几何结构保持插值方法，通过利用测地线单元插值 Cosserat 旋转张量并将其投影回旋转李群，有效解决了有限应变 Cosserat 微极弹性模型中的锁定效应，确保了在耦合模量趋于无穷大时的数值稳定性与渐近一致性。

Lucca Schek, Peter Lewintan, Wolfgang Müller + 5 more2026-03-06🔬 physics

Entropy Has No Direction: A Mirror-State Paradox Against Universal Monotonic Entropy Increase and a First-Principles Proof that Constraints Reshape the Entropy Distribution $P_{\infty}(S;λ)$

本文通过构建时间反演对称下的“镜像态”悖论，论证了熵并非必然单调增加，而是受约束条件重塑的概率分布变量，并首次从原理上推导了约束如何通过改变不变测度来重构长时熵分布 $P_{\infty}(S;\lambda)$ 。

Ting Peng2026-03-06🔬 physics

Fused-Silica Activation Cherenkov Detector for Pulsed D--T Fusion Yields

本文介绍了一种基于未掺杂熔融二氧化硅棒的紧凑型、低成本中子产额诊断系统，该系统利用中子活化产生的短寿命同位素发射的切伦科夫辐射，实现了对脉冲 D-T 聚变系统的高选择性、脉冲间产额测量，并已在 ZEUS 装置上完成校准且正部署于 Helion Energy 的 Polaris 原型机。

N. Kaneshige, S. Alawabdeh, W. Hennig + 3 more2026-03-06🔬 physics

First measurement of the strong interaction scattering parameters for the $\mathbf{K^-d}$ and $\mathbf{K^+d}$ systems

ALICE 合作组利用铅 - 铅碰撞数据，首次测量了 $\rm K^-d$ 和 $\rm K^+d$ 系统的强相互作用散射参数，为低能区手征量子色动力学建模提供了首个实验基准。

ALICE Collaboration2026-03-06🔬 physics

Comparison of Structure-Preserving Methods for the Cahn-Hilliard-Navier-Stokes Equations

本文提出并分析了针对具有退化迁移率的 Cahn-Hilliard-Navier-Stokes 方程的结构保持间断 Galerkin 方法（SWIPD-L 和 SIPGD-L），通过引入参数化迁移率通量和边向迁移率处理，在证明广义三线性形式强制性与最优收敛性的同时，确保了质量守恒、能量耗散及离散极大值原理，并验证了其在 hp 自适应网格上相比现有方法具有显著的计算效率优势。

Jimmy Kornelije Gunnarsson, Robert Klöfkorn2026-03-06🔬 physics

Persistence-Driven Void Formation in Dense Active-Passive Mixtures

该研究表明，在致密活性 - 被动混合物中，增加活性粒子的持久性会引发从均匀流体化到局部机械不稳定性（即空洞成核与应力积累）的转变，从而通过空间重构而非单纯增强弛豫来重塑无序固体的流体化机制。

Giulia Janzen, Liesbeth M. C. Janssen, Nuno A. M. Araújo + 2 more2026-03-06🔬 physics

Phase variance as a seismic quality-control attribute

本文提出了一种名为“相位方差”的地震质量控制属性，通过利用圆统计法自动量化局部相位色散，有效克服了传统地表一致性反褶积在处理近地表非一致性畸变及缺乏直接相位可靠性度量方面的局限，为从振幅到全波形反演等相位敏感工作流程提供了频率分级的客观评估指标。

Akshika Rohatgi, Andrey Bakulin, Sergey Fomel2026-03-06🔬 physics

Metric Rarity and the Emergence of Symmetry in G-Invariant Potential Surfaces

该论文通过证明在有限群作用下，实像空间在商空间中的相对体积随群阶数超指数衰减，揭示了度量稀有性如何导致非对称临界点统计上可忽略，并驱动优化问题的全局极小值趋向于具有非平凡稳定子群的高余维边界，从而从几何角度解释了 G 不变势函数中对称性涌现及能级排序的机制。

Irmi Schneider2026-03-06🔬 physics

Still The New Classical Relativistic Equation of Charge Motion in an Electromagnetic Field

本文提出了一种基于洛伦兹变换的协变推广方法，导出了不含“发散解”的新经典相对论性点电荷运动方程，并证明了阿布拉罕 - 洛伦兹 - 狄拉克方程和莫 - 帕帕斯方程是该理论的特例。

Anatoliy V. Sermyagin2026-03-06🔬 physics

Measurement of the $e^+e^-\toπ^+π^-π^0$ cross section in the energy region from 0.56 to 1.1 GeV with the SND detector

该论文利用 VEPP-2000 对撞机上 SND 探测器采集的数据，在 0.56 至 1.1 GeV 能区精确测量了 $e^+e^-\to\pi^+\pi^-\pi^0$ 过程的截面，并据此更新了 $\omega$ 、 $\rho$ 和 $\phi$ 介子的共振参数及μ子反常磁矩的强子贡献值。

SND Collaboration, M. N. Achasov, A. E. Alizzi + 44 more2026-03-06🔬 physics

A Dynamical Theory of Sequential Retrieval in Input-Driven Hopfield Networks

本文针对输入驱动的可塑性 Hopfield 网络，建立了一套动力学理论，通过解析快慢时间尺度耦合机制，推导出了自持记忆转换的显式条件，从而为联想记忆模型中的序列推理提供了 principled 的数学解释。

Simone Betteti, Giacomo Baggio, Sandro Zampieri2026-03-06🔬 physics

Relativistic distorted-wave analysis of the missing-energy spectrum measured with monochromatic $ν_μ$ - $^{12}$ C interactions at JSNS $^{2}$

本文利用结合高分辨率 $(e,e'p)$ 实验数据的新型谱函数参数化，通过相对论畸变波方法分析了 JSNS $^2$ 合作组首次测量的单能 $\nu_\mu$ - $^{12}$ C 相互作用缺失能谱，并探讨了剩余核反冲、末态相互作用及中微子事件生成器对低能核效应的描述能力。

J. M. Franco-Patino, J. García-Marcos, V. Belocchi + 3 more2026-03-06🔬 physics

physics

Supervised Metric Regularization Through Alternating Optimization for Multi-Regime Physics-Informed Neural Networks

Empirical Stability Analysis of Kolmogorov-Arnold Networks in Hard-Constrained Recurrent Physics-Informed Discovery

Magnetic excitations in the Kitaev material Na $_2$ IrO $_3$ studied by neutron scattering

3d Conformal Field Theories via Fuzzy Sphere Algebra

A structure-preserving discretisation of SO(3)-rotation fields for finite Cosserat micropolar elasticity

Entropy Has No Direction: A Mirror-State Paradox Against Universal Monotonic Entropy Increase and a First-Principles Proof that Constraints Reshape the Entropy Distribution $P_{\infty}(S;λ)$

Fused-Silica Activation Cherenkov Detector for Pulsed D--T Fusion Yields

First measurement of the strong interaction scattering parameters for the $\mathbf{K^-d}$ and $\mathbf{K^+d}$ systems

Comparison of Structure-Preserving Methods for the Cahn-Hilliard-Navier-Stokes Equations

Persistence-Driven Void Formation in Dense Active-Passive Mixtures

Phase variance as a seismic quality-control attribute

Metric Rarity and the Emergence of Symmetry in G-Invariant Potential Surfaces

Still The New Classical Relativistic Equation of Charge Motion in an Electromagnetic Field

Measurement of the $e^+e^-\toπ^+π^-π^0$ cross section in the energy region from 0.56 to 1.1 GeV with the SND detector

A Dynamical Theory of Sequential Retrieval in Input-Driven Hopfield Networks

Relativistic distorted-wave analysis of the missing-energy spectrum measured with monochromatic $ν_μ$ - $^{12}$ C interactions at JSNS $^{2}$

Combinatorics of the Cosmohedron

Predicting oscillations in complex networks with delayed feedback

Settlement percolation: global maps of Critical Distances

Spatial symmetry invariance of solution of Kolmogorov flow

physics

Supervised Metric Regularization Through Alternating Optimization for Multi-Regime Physics-Informed Neural Networks

Empirical Stability Analysis of Kolmogorov-Arnold Networks in Hard-Constrained Recurrent Physics-Informed Discovery

Magnetic excitations in the Kitaev material Na2_22​IrO3_33​ studied by neutron scattering

3d Conformal Field Theories via Fuzzy Sphere Algebra

A structure-preserving discretisation of SO(3)-rotation fields for finite Cosserat micropolar elasticity

Entropy Has No Direction: A Mirror-State Paradox Against Universal Monotonic Entropy Increase and a First-Principles Proof that Constraints Reshape the Entropy Distribution P∞(S;λ)P_{\infty}(S;λ)P∞​(S;λ)

Fused-Silica Activation Cherenkov Detector for Pulsed D--T Fusion Yields

First measurement of the strong interaction scattering parameters for the K−d\mathbf{K^-d}K−d and K+d\mathbf{K^+d}K+d systems

Comparison of Structure-Preserving Methods for the Cahn-Hilliard-Navier-Stokes Equations

Persistence-Driven Void Formation in Dense Active-Passive Mixtures

Phase variance as a seismic quality-control attribute

Metric Rarity and the Emergence of Symmetry in G-Invariant Potential Surfaces

Still The New Classical Relativistic Equation of Charge Motion in an Electromagnetic Field

Measurement of the e+e−→π+π−π0e^+e^-\toπ^+π^-π^0e+e−→π+π−π0 cross section in the energy region from 0.56 to 1.1 GeV with the SND detector

A Dynamical Theory of Sequential Retrieval in Input-Driven Hopfield Networks

Relativistic distorted-wave analysis of the missing-energy spectrum measured with monochromatic νμν_μνμ​-12^{12}12C interactions at JSNS2^{2}2

Combinatorics of the Cosmohedron

Predicting oscillations in complex networks with delayed feedback

Settlement percolation: global maps of Critical Distances

Spatial symmetry invariance of solution of Kolmogorov flow

Magnetic excitations in the Kitaev material Na $_2$ IrO $_3$ studied by neutron scattering

Entropy Has No Direction: A Mirror-State Paradox Against Universal Monotonic Entropy Increase and a First-Principles Proof that Constraints Reshape the Entropy Distribution $P_{\infty}(S;λ)$

First measurement of the strong interaction scattering parameters for the $\mathbf{K^-d}$ and $\mathbf{K^+d}$ systems

Measurement of the $e^+e^-\toπ^+π^-π^0$ cross section in the energy region from 0.56 to 1.1 GeV with the SND detector

Relativistic distorted-wave analysis of the missing-energy spectrum measured with monochromatic $ν_μ$ - $^{12}$ C interactions at JSNS $^{2}$