Physical Review X (PRX) is APS's newest, online-only, and fully open access journal. Its broad scope encompasses all areas of pure, applied, and interdisciplinary physics. PRX carefully applies highly selective editorial standards comparable to those of the top journals in physics and aims to attract, select, and publish papers that are exceptional in originality, substance, and significance. With its open access model and through innovation in content delivery, PRX disseminates important new results, both broadly and effectively, across the global science and engineering community.

American Physical Society

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Reactive optical matter: Light-induced motion

Newton's third law dictates that forces between interacting particles are equal and opposite for closed systems. In a non-equilibrium environment, the third law can be defied, giving rise to "nonreciprocal" forces. Theoretically, ...

How can you tell if a quantum memory is really quantum?

Quantum memories are devices that can store quantum information for a later time, which are usually implemented by storing and re-emitting photons with certain quantum states. But often it's difficult to tell whether a memory ...

Accelerating light beams in curved space

By shining a laser along the inside shell of an incandescent light bulb, physicists have performed the first experimental demonstration of an accelerating light beam in curved space. Rather than moving along a geodesic trajectory ...

What is quantum in quantum thermodynamics?

(—A lot of attention has been given to the differences between the quantum and classical worlds. For example, quantum entanglement, superposition, and teleportation are purely quantum phenomena with no classical ...

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