There has been NASA development of laser (photon) beamed propulsion and particle beam propulsion. Both have scattering and focusing issues at long distances. They are looking at optimal cooling and ...

Photon beams have long served as a precise probe into the subatomic world, offering unique insights into the structure and dynamics of nucleons. In photoproduction experiments, high-energy photons ...

James Benford presents his Ultrahigh Acceleration Neutral Particle Beam-Driven Sails at Space Access 2019. The Neutral Particle Beam-Driven Sails could enable an interstellar probe to alpha centauri ...

Schematic of the MIT experiment: Two single atoms floating in a vacuum chamber are illuminated by a laser beam and act as the two slits. The interference of the scattered light is recorded with a ...

An experiment measuring a single atom's recoil confirmed that observing a particle destroys interference, settling the ...

Complementarity A new twist on the double-slit experiment. (Courtesy: Shutterstock/Andrey VP) One of the most counterintuitive concepts in physics – the idea that quantum objects are complementary, ...

The world's cutting-edge particle accelerators are pushing the extremes in high-brightness beams and ultrashort pulses to explore matter in new ways. To optimize their performance -- and to prepare ...

Physicists confirm that light has two identities that are impossible to see at once. (Nanowerk News) MIT physicists have performed an idealized version of one of the most famous experiments in quantum ...