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Gravitation

Viewpoint: Black Hole Evolution Traced Out with Loop Quantum Gravity

Loop quantum gravity—a theory that extends general relativity by quantizing spacetime—predicts that black holes evolve into white holes. Read More »

Quantum Information

Focus: Twisted Light in a Photonic Chip

Light waves capable of storing quantum information can propagate through a photonic chip waveguide and potentially be used for on-chip computation. Read More »

Nuclear Physics

Synopsis: Revamping the Skyrmion Model

Theorists extend a nearly six-decades-old model for the atomic nucleus and use it to predict shape effects that the traditional model misses. Read More »

Energy Research

Synopsis: Uneven Turbine Placement Improves Wind Farms

Wind-tunnel experiments show that uneven positioning of the turbines in a wind farm can improve its power output. Read More »

Gravitation

Synopsis: Satellite Mishap Provides Chance for Relativity Test

Two satellites erroneously placed in elliptical orbits have been used to test general relativity with unprecedented precision. Read More »

Materials Science

Viewpoint: A Ranking Scheme for Mass-Transport Predictions

A new theory provides a way to compare the accuracy of different mass-transport calculations, which are widely used to evaluate the performance of materials. Read More »

Interdisciplinary Physics

Focus: Computing with Wi-Fi Waves

Experiments demonstrate that a room in a house or office building could act as an analog computer processing the microwaves used for Wi-Fi. Read More »

Quantum Physics

Synopsis: Quantum Entanglement With 10 Billion Atoms

Researchers have experimentally demonstrated two cornerstones of quantum physics—entanglement and Bell inequality violations—with two macroscopic mechanical resonators. Read More »

Nuclear Physics

Synopsis: Pinning Down Superheavy Masses

A new measurement technique directly determines the masses of two superheavy isotopes, providing confirmation that previous indirect measurements were correct. Read More »

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