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Related Articles from SNS
Optimal velocity fields for instantaneous magnetic field growth
arXiv:2508.03573v3 Announce Type: replace Abstract: We consider a variant of the kinematic dynamo problem. Rather than prescribing a velocity field and searching for high-growth magnetic fields via an eigenvalue problem, we treat the seed magnetic-field structure as given and ask which velocity field maximally enhances its instantaneous growth. We show this second problem has an elegant formulation in terms of variational calculus.
Daughter of Mrs. Fields Starts Fields Good, a Healthy Cookie Brand
Growing up, “I didn’t learn how to bake with science-backed ingredients,” said Ashley Fields, a co-founder of Fields Good, an online cookie company.
Masked Wavelet Scattering Transform Neural Field for Sound Field Reconstruction
arXiv:2606.04370v1 Announce Type: cross Abstract: In this paper, we propose a reconstruction framework that leverages the Wavelet Scattering Transform (WST) as a multi-scale feature extractor to impose statistical priors under sparse observation conditions. The reconstruction problem is formulated as an optimization task and solved using a neural field, with the WST incorporated into the training loss function. As a proof of concept, we validate the proposed method on HRTF upsampling.
Experimental observation of strong field stabilization
arXiv:2606.00242v1 Announce Type: new Abstract: Strong oscillating fields are expected to tear apart bound quantum states. Theoretical studies predict a striking reversal: that as the field intensity is raised above some threshold, bound states like atoms can become increasingly stable, accompanied by a spatial bifurcation of the bound state wavefunction. This strong field stabilization was predicted decades ago in the context of atoms in pulsed laser fields, but has resisted experimental...
Efficient Numerical Modeling of Near-Field Diffraction in ORIS-Assisted Free-Space Optical Links
Announce Type: new Abstract: This paper investigates near-field propagation in optical reconfigurable intelligent surface (ORIS)-assisted free-space optical (FSO) communication systems. Unlike conventional far-field scenarios, near-field propagation involves complex diffraction effects that hinder tractable closed-form analysis. To address this issue, a numerical framework for evaluating the optical field distribution of ORIS-assisted FSO links is proposed.
Pitsford plane crash horror as aircraft plunges into field with huge emergency response
Pitsford plane crash horror as aircraft plunges into field with huge emergency response The light aircraft plunged into a field close to Pitsford, near Northampton, sparking a rescue mission by police and fire crews - who evacuated two people Two people have been rushed to hospital after a plane crashed into a field near Pitsford. The light aircraft plunged into the field close to Northampton at around 3:50pm, sparking a rescue mission by police and fire crews. Northamptonshire Fire and...
'Hot Jupiter' winds blasting at over 15,000 mph reveal 1st evidence of exoplanets with magnetic fields
'Hot Jupiter' winds blasting at over 15,000 mph reveal 1st evidence of exoplanets with magnetic fields "A key step toward ultimately understanding which planets can stay alive, keep their water, and perhaps even, one day, host life as we know it." Astronomers have discovered the first evidence of magnetic fields around planets beyond the solar system, and they did so by studying the worlds' high-speed, violent winds. This marks the first direct measurement of exoplanet magnetic field...
'Totally counterintuitive': Scientists accidentally discover magnetic fields around 7 distant planets, opening new window in the search for life
'Totally counterintuitive': Scientists accidentally discover magnetic fields around 7 distant planets, opening new window in the search for life In an astronomical first, researchers have measured the magnetic fields of seven "hot Jupiter" planets beyond our solar system — adding new clues in the search for alien life. In a first-of-its-kind discovery, astronomers claim they have directly measured the magnetic fields of multiple planets beyond our solar system — potentially providing a...
Static Electric Fields as a Model for Hydrogen-Bond-Induced Dissociation of HF and HCl
arXiv:2606.09011v1 Announce Type: new Abstract: The influence of static electric fields on the electronic structure and dissociation behavior of the polar diatomics \ce{HF} and \ce{HCl} is investigated using quantum chemical calculations. Ground- and excited-state potential energy surfaces (PESs) are computed as a function of bond distance and external electric field strength to examine field-induced modifications of chemical bonding. The calculations reveal pronounced bond softening and...
Dynamics in a Low-Rank Separable Field Cellular Automaton
arXiv:2606.08983v1 Announce Type: cross Abstract: Complex collective dynamics in cellular automata are usually associated with local-neighborhood combinatorics, yet it remains unclear whether long-lived dynamical organization requires such explicit local interaction structure. Here, we introduce a Separable-Field Cellular Automaton (SFCA), a normalized-field cellular automaton in which local neighbor counting is replaced by a rank-one-like row-column field. Each cell is updated according to...