Last year our group at the California Institute of Technology teamed up with Loren Pfeiffer and Ken West of Bell Labs to study how electrons tunnel between two parallel 2-D electron gases. These electrons reside in a semiconductor heterostructure consisting of two thin layers of gallium arsenide separated by a barrier layer of aluminium gallium […]
Michael Berry, Irene Marzoli and Wolfgang Schleich on the interference of waves that weave rich tapestries in space and space–time
Read article: Quantum carpets, carpets of light
Recent data from the cosmic microwave background add further weight to the inflationary big-bang model. But more precise measurements from NASA's MAP satellite could challenge this theory
Read article: Microwaves map cosmic origins
A new theory to predict the properties of nuclei is boosted by real data
Visible radiation from metal ions is used to create the word's most accurate clock
Magnesium diboride gears up for the real world following a rash of technical breakthroughs
Devices that use the spin on electrons move a step closer
Biophysicists find that proteins are much more dynamic than previously thought
Nitrogen in Jupiter's atmosphere provide clues to the make-up of the pre-planetary nebula
The surprise break-up of a comet give astronomers a bonus insight into how planets form
Read article: Comet collapse opens a window on the past
