Read article: Top Livermore physicist resigns
Campbell left his position last Friday after a series of anonymous faxes was sent to officials at the Department of Energy (DOE) saying that he did not have a doctorate degree. Although Campbell finis...
Atomic interferometers use lasers to place atoms into superpositions of different quantum states. These states acquire different phases as they move in a gravitational field, and this phase difference...
Read article: A double-slit experiment in a single molecule
Photons from the laser can excite electrons in the water molecules into a so-called anti-bonding state. Molecules in this state can adopt one of two distorted shapes, both of which can dissociate into...
Read article: Atom lasers
The exotic quantum phenomenon of Bose–Einstein condensation is the key ingredient in a new type of laser that emits atoms rather than photons, and that promises to revolutionize atom optics
Scheuer and Orenstein used so-called vertical cavity surface-emitting lasers. In these devices the light is emitted from the top of the active region of the laser, rather than from the edge as in conv...
The researchers also showed that the rubidium gas, which they say is a “relatively easily created medium”, exhibits extremely efficient nonlinear interactions. Materials with such properti...
Charge-parity (CP) symmetry implies that particles and antiparticles behave like mirror images of each other. Charge conjugation changes particles into their antiparticles – e.g., electrons beco...
The photonic crystal was made by using an ion beam to drill a 2D hexagonal array of holes in a layer of indium gallium arsenide phosphide (InGaAsP). The regular spacing of the holes means that only ce...
Schawlow was born in New York and educated at the University of Toronto, where he received his first degree in 1941 and his PhD in 1949. After a spell at Columbia University, where he worked with Char...
The clusters were produced by expanding a deuterium gas jet into a vacuum. A laser beam focussed near the top of the plume heats the clusters, causing them to explode. This creates a small plasma of h...
