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A theoretical study from Japan's Institute for Molecular Science reproduces most of a puzzling infrared signal in a perovskite film without any change in molecular vibrations.
Researchers at UVSOR used phase-coherent extreme ultraviolet pulse pairs and watched interference fringe contrast fall over a few femtoseconds, tracking an inner-shell vacancy in xenon atoms.
A prototype at TU Wien locks a laser to thorium nuclei without a conventional atomic clock. Its precision is about 10^-15, still below the best optical atomic clocks.
A theoretical model from JINR with two collective parameters reproduced measured half-lives of isotopes from uranium to hassium, which differ by tens of orders of magnitude.
A Delft University of Technology team flipped the nuclear spin of a single atom even when it was largely disentangled from the electron spin, contrary to the authors' expectations.
The model uses Inouye telescope images and scaling laws from near-Earth spacecraft data to estimate how the corona is heated to more than a million degrees.
Researchers ruled out binary black holes of about 10 billion solar masses and above in two distant systems. These are the first gravitational-wave limits for so early an epoch.
A team from Charles University and the University of Cambridge showed that current pulses switch UTe₂ between low and high critical current density states, and the state persists for hours.
Analysis of the GW190412 signal constrains the recoil direction of the merged black hole and disfavours kick speeds below 50 km/s, typical for dense globular clusters.
Astronomers from Nagoya and Gifu universities mapped a 26-light-year trail of warmed CO gas at LMC P3, supporting the microquasar model of its gamma-ray emission.
Microscopy and simulations show the blue peak of the non-spectral magenta in Anna's hummingbird feathers arises from interaction of the top and middle melanosome layers.
Photon pairs from two independent gallium arsenide quantum dots were used for entanglement swapping in a laboratory setup, a step toward quantum repeaters. Fidelity reached 0.71 with time selection.
A prototype three-qubit superconducting processor performs CCZ in one pulse instead of the usual eight two-qubit operations, which reduces accumulated error.
Intensity cycling added to transient scattering microscopy isolates single-particle transport in van der Waals semiconductors and tracks exciton–exciton annihilation in lab experiments.
A theoretical analysis in The Astrophysical Journal shows how a planet's Doppler modulation adds sidebands to a gravitational-wave signal; the method favours massive, long-period planets.
Analysis of a confined crowd of over 5,000 in Pamplona showed hundreds of people moving in synchronous orbits; a mechanical model explains the effect.
General Atomics physicists recorded plasma heating by helicon waves at DIII-D, a method meant to let tokamaks run longer without recharging the solenoid.
A prototype speckle spectrometer built around an integrating sphere resolves 6 fm at 780 nm, about 80 times finer than earlier speckle devices, and measured rubidium hyperfine structure.
Hong Kong Polytechnic University researchers found that uneven charge losses between neighbouring grains speed up light ageing; an additive slowed it in small lab cells.
The 2024 first campaign of the ALPS II light-through-a-wall experiment saw no signal, yet the setup set a new sensitivity record for laboratory axion searches.
