Recent Articles
A Liquid Method to Prepare Ion Beams
A liquid-metal jet can strip electrons from a high-intensity, accelerator-based ion beam, increasing the beam’s charge and enhancing accelerator performance. Read More »
Explaining Asymmetric Emission from Quantum Dots
A new experiment on the emission spectrum of quantum dots in photonic-crystal microcavities supports a recently proposed theory of cavity quantum electrodynamics. Read More »
Turning Back Time on Space
Developments in computer science could allow astrophysicists to reverse the cosmic distribution of matter from today back to any point in the Universe’s history. Read More »
Physics Scratches a Philosopher’s Itch
Philosopher Elise Crull muses over interpretations of quantum physics, focusing on experiments that cast doubt on our classical notions of causality. Read More »
Revisiting a Cosmological Conundrum
A discrepancy between different measurements of the Hubble constant could be removed by the existence of an exotic form of dark matter. Read More »
Fluid Dynamics of Clouds
In a series of invited papers, researchers discuss new tools for reducing uncertainties in climate models associated with cloud formation and transport. Read More »
Metamaterials Control the Shape of Water Waves
A water wave incident on a grooved wall is shown to be analogous to electromagnetic waves called surface plasmon polaritons. Read More »
A Supersolid Disk
Researchers have created a disk-shaped supersolid, an achievement that could provide new routes to exploring previously unseen states of matter. Read More »
Explaining the Mechanics of a Bird’s Nest
Experiments and simulations explain the unusual nature of the structure’s springiness. Read More »
