Spectroscopy
6 reportsDiscussion of Spectroscopy distinguishes instrument calibration, together with signal or separation principle and method validation. Reporting uses blank and control samples alongside interlaboratory comparison to assess signal or separation principle; the conclusion remains provisional because matrix effects, contamination, and instrument drift can bias measurements.
Nanometre Fabrication Shifts Explain Transmon Qubit Performance Gaps
A blinded study of 22 superconducting transmons links twofold T1 variation to nanometre-scale oxide and etch differences while finding no clear role for macroscopic surface defects
XRISM Tracks Stellar Wind Falling Onto a Pulsar
XRISM has traced iron-rich plasma moving toward the pulsar GX 301-2 at about 540,000 kph, providing spectroscopic evidence that a neutron star captures its giant companion's stellar wind and powers recurring X-ray flares.
NASA tests Slingshot spacecraft concept for mineral mapping beyond Earth
A NASA-funded study is evaluating whether a small spacecraft using Raman spectroscopy could remotely identify minerals on the Moon, asteroids, and Martian moons, potentially transforming how resources are surveyed before future missions
Neutral-Atom Quantum Simulator Probes 2D Conformal Field Theory Spectra
A Caltech-led team has directly measured finite-size energy excitation spectra predicted by two-dimensional conformal field theory, using a neutral-atom quantum simulator based on strontium atom chains and Rydberg interactions
Sun's Silver Shortfall Explained by Advanced Atomic Modeling
Researchers using high-fidelity atomic simulations have found that the sun contains significantly more silver than previous spectral measurements suggested, resolving a longstanding discrepancy between solar and meteorite compositions
Sanxingdui Bronze Figure Assembled From Separate Ancient Artifacts
A new analysis of a bronze kneeling figure from Sanxingdui, China, reveals it was constructed from components made in different regions and periods, providing evidence for complex trade and metalworking in the ancient Shu kingdom