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Atomic and Molecular Physics

Synopsis: Fermions Trapped in Boson Gas

A Bose-Einstein condensate can act as a stable trap for a gas of fermions. Read More »

Astrophysics

Viewpoint: Out of Neutron Star Rubble Comes Gold

New calculations show that the accretion flows that form after a neutron star collision can eject large amounts of matter that is rich in gold and other heavy elements. Read More »

Optics

Synopsis: One Device, Two Holograms

Researchers have demonstrated a device that can project two distinct holographic images when illuminated at different angles.   Read More »

Atomic and Molecular Physics

Synopsis: Atom Interferometers at Full Tilt

An atom interferometer serves as a sensitive tiltmeter that can measure Earth’s tidal deformations. Read More »

Gravitation

Synopsis: Space Tests of the Equivalence Principle

The MICROSCOPE satellite mission has tested the equivalence principle with unprecedented precision, showing no deviations from the predictions of general relativity. Read More »

Superconductivity

Viewpoint: Cuprate Superconductors May Be Conventional After All

Experiments on a copper-based high-temperature superconductor uncover the existence of vortex states—a hallmark of conventional superconductivity. Read More »

Soft Matter

Focus: Dice Become Ordered When Stirred, Not Shaken

A jumble of thousands of cubic dice, agitated by an oscillating rotation, can rapidly become completely ordered, a result that is hard to produce with more conventional shaking. Read More »

Gravitation

Synopsis: Gravitational Waves Could Reveal Black Hole Origins

Observations of black hole mergers in the very distant Universe could indicate whether all black holes form from stars.   Read More »

Mechanics

Synopsis: Crumpling Coke Cans

Experiments reveal what kinds of dents render a can and other metal shells crushable. Read More »

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