Physics

physics

General physics spanning optics, fluids, plasma, atomic, and applied physics.

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Direct Measurements Map Fast Solar-Wind Acceleration

Three spacecraft trace a coronal-hole stream from 9.86 solar radii to 1 au, showing that most acceleration finishes by 60 solar radii.

Sep 5, 20264 min2609.00318

Fiber Network Verifies Independent Optical Clocks Below 10⁻¹⁷

A two-month, four-country fiber campaign compared seven clocks and measured frequency ratios with uncertainties from 7.7×10⁻¹⁸ to 6.1×10⁻¹⁷.

Sep 2, 20264 min2604.27963

Laser-Plasma Accelerator Delivers Microcoulomb Beams and Joule X-Rays

A kilojoule-class PETAL pulse drives mixed wakefield and direct laser acceleration, producing electron beams above 1 µC and broadband bremsstrahlung at the joule level.

Aug 31, 20264 min2608.16459

Adhesion Changes Epithelial Fluidity Without Reshaping Cells

By adding adhesion-dependent intercellular friction to a vertex model, the analysis explains fluidity changes across five DECMA-1 concentrations without a shape-index shift.

Aug 28, 20265 min2603.05548

FLARE Extends Laboratory Access to Multiple X-Line Reconnection

A larger, modular reconnection experiment combines segmented coils, independent ohmic heating, and upgraded diagnostics to target $S\sim10^5$ and $\lambda\sim10^3$.

Aug 26, 20265 min2608.17332

MicroBooNE Measures MeV Energy Resolution in Liquid Argon

Pair-production topologies from 2.614 MeV thallium gamma rays isolate a 1.54 MeV calibration peak with 7.52% reconstructed-energy resolution.

Aug 23, 20264 min2605.30709

Flow-Guided Tags Identify 63% of LZ Lead-214 Background

Tracking radon progeny through a controlled liquid-xenon flow field identifies ground-state lead-214 decays while sacrificing 9.0% of exposure.

Aug 21, 20264 min2508.19117

TUCAN Sets New Detected Ultracold Neutron Rate

A spallation-driven source combines heavy-water and liquid-deuterium moderation with superfluid helium conversion to reach 6.75×10⁵ detected UCN/s.

Aug 18, 20264 min2607.03033

Solar Orbiter Extends Geomagnetic Storm Warnings by Hours

Far-upstream magnetic-field measurements constrain CME propagation and drive Dst forecasts 15.3 and 4.3 hours before shocks reach L1.

Aug 16, 20264 min2508.13892

Kaonic Deuterium X-Rays Expose the K−n Threshold Interaction

SIDDHARTA-2 isolates rare deuterium X-rays with timing-selected silicon detectors, measuring an −810.9 eV 1s shift and 812 eV width.

Aug 13, 20265 min2608.10749