Physics - Two Paths to a Magnetic Gradiometer
Atomic magnetometers employing two new geometries can exclude background fields to pick up weak, nearby radio-frequency sources.
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Atomic magnetometers employing two new geometries can exclude background fields to pick up weak, nearby radio-frequency sources.
A Bose-Einstein condensate of europium atoms provides a new experimental platform for studying quantum spin interactions.
Spectra from quasars suggest that intergalactic gas may have been heated by a form of dark matter called dark photons.
Experiments disprove the general assumption that more than one wave mode is needed to produce a spectral pattern called a frequency comb.
Some icicles develop surface ripples as they grow. Researchers now explain the growth mechanism, but a full explanation remains elusive.