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Quantum Physics

Synopsis: Testing Quantum Physics with Neutrinos

An experiment similar to the Bell inequality test confirms that neutrino oscillation is a quantum physics effect that is incompatible with alternative classical models. Read More »

Particles and Fields

Viewpoint: Of Gluons and Fireflies

Improved models of gluon fluctuations within protons have been developed and applied to particle collision data, pointing to strong gluon fluctuations at high energies. Read More »

FEATURE

Q&A: Sticking with Physics Against the Odds

María Sánchez Colina, president of the Cuban Physical Society, describes the challenges she faces working as a physicist in Cuba and her efforts to strengthen research in her country. Read More »

Quantum Physics

Focus: Two Atoms Can Jointly Absorb One Photon

Theorists show that two atoms in an optical cavity can absorb the same photon. Read More »

Fluid Dynamics

Synopsis: Tiny Droplets Do the Twist

Liquid-crystal droplets can act like controllable artificial swimmers, twisting in two and three dimensions. Read More »

Atomic and Molecular Physics

Synopsis: Taking Pictures with Single Ions

A new ion microscope with nanometer-scale resolution builds up images using single ions emitted one at a time from an ion trap. Read More »

Chemical Physics

Synopsis: Water Under Confinement

Molecular dynamics simulations indicate that the dielectric constant of water may dramatically change when the liquid is confined between two surfaces. Read More »

Graphene

Viewpoint: Chasing the Exciton Condensate

Unusual interactions between charges have been observed in two closely separated graphene bilayers, a promising system in which to create a condensate of electron-hole pairs. Read More »

Electronics

Focus: Detecting Photons With a Thermometer

A new technique detects as few as 200 microwave photons at a time by the heat they supply to an electrical circuit. Read More »

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