Lab experiments provide new details about the charge-transfer process that occurs in ash clouds and other collections of particles. Electric volcano. Triboelectric charging caused by collisions of ash ...

Topological superconductors hold promise for fault-tolerant quantum computing, but isolating signatures of the desired topological states has proven an elusive goal. A new study of an iron-based ...

Conduction electrons typically whiz through crystals in broad energy bands. However, some arrangements of atoms conceivably engender so much destructive interference among the electrons’ wave packets ...

A device that stores a single positron and controls its quantum states could measure its magnetic moment with unprecedented precision, testing a symmetry principle central to quantum field theory.

Figure 1: Among the key ingredients necessary to derive the Born rule, Zhang observes that additivity is indispensable in existing derivations. Figure 1: Among the key ingredients necessary to derive ...

According to the Heisenberg uncertainty principle, both the position and momentum of a quantum particle cannot be known with unlimited precision. In 1965, theorists showed that this principle does not ...

Figure 1: Moore and his colleagues measured the momentum kick imparted by a single gas molecule on an optically levitated silica nanoparticle (center) [2]. Thanks to the isolation offered by setups ...

A technique known as ghost imaging has been adapted so that an object can be imaged by discarding all photons that interact with it. Split a beam of light in two and direct one beam (the reference) to ...

An ultrafast optical technique uncovers new clues to the origin of bulk polarization in quantum ferroelectric materials. In classical ferroelectric materials, electric dipoles in the material line up ...