The quantum computer is growing up

A general rule in data processing is that disturbances cause the distortion or deletion of information during data storage or transfer. Methods for conventional computers were developed that automatically identify and correct errors: Data are processed several times and if errors occur, the most likely correct option is chosen. As quantum systems are even more sensitive to environmental disturbances than classical systems, a quantum computer requires a highly efficient algorithm for error correction.

Measuring atomic ‘noise’ in nanoscale devices

At the forefront of nanotechnology, researchers design miniature machines to do big jobs, from treating diseases to harnessing sunlight for energy. But as they push the limits of this technology, devices are becoming so small and sensitive that the behavior of individual atoms starts to get in the way. Now Caltech researchers have, for the first time, measured and characterized these atomic fluctuations - which cause statistical noise - in a nanoscale device.

Bruker Launches Novel D8 QUEST and D8 VENTURE High Performance X-ray Crystallography Systems with Next-Generation Large Area CMOS Detectors

This Memorial Day weekend at the 2011 Annual ACA Meeting, Bruker will launch a new series of high-performance X-ray crystallography systems, including the D8 QUEST and the D8 VENTURE. Both systems incorporate next-generation X-ray source and novel detector technology to deliver unrivalled performance, ease of use, reliability and value.

Nanoelectronics with germanium

Germanium was the basic material of first-generation transistors in the late 1940s and early 1950s before it was replaced by silicon (the first silicon transistor was produced by Texas Instruments in 1954). Using germanium instead of silicon as transistor material would enable faster chips containing smaller transistors because higher switching speeds than in silicon could be achieved using germanium. A novel fabrication route demonstrated by a research team in Australia, using a combination of scanning tunneling microscope (STM) lithography and high-quality crystal growth, opens up an entire new area where quantum behavior of highly confined electrons in germanium can be studied for the first time.

Materialforschung in neuer Dimension

Auf der Suche nach Materialien etwa fuer elektronische Bauteile koennen Physiker kuenftig einer neuen Spur folgen: Ein internationales Forscherteam hat zum ersten Mal praezise beobachtet, wie sich die physikalischen Eigenschaften einer Substanz - genauer gesagt des Metalloxids Lanthannickeloxid - aendern, wenn es in zweidimensionaler statt dreidimensionaler Form verarbeitet wird.