Home  |  Top News  |  Most Popular  |  Video  |  Multimedia  |  News Feeds  |  Feedback
  Medicine  |  Nature & Earth  |  Biology  |  Technology & Engineering  |  Space & Planetary  |  Psychology  |  Physics & Chemistry  |  Economics  |  Archaeology
Top > Technology & Engineering >
Like Fish on Waves: Electrons Go Surfing

Published: September 22, 2011.
By Ruhr-University Bochum

Physicists at the RUB, working in collaboration with researchers from Grenoble and Tokyo, have succeeded in taking a decisive step towards the development of more powerful computers. They were able to define two little quantum dots (QDs), occupied with electrons, in a semiconductor and to select a single electron from one of them using a sound wave, and then to transport it to the neighbouring QD. A single electron "surfs" thus from one quantum dot to the next like a fish on a…

Read Full Story »


Fish, Surface, Electrons, Water, Voltage, Semiconductors, Layer, …

Cluster Centroids (Superclass Keywords)

Surface, Water, Ball, Surfaces, Hines, Fish, Monolayer, Air, Friction, Roughness, Wrinkle, Crease, Npl, Layer, Measurements, Golf, Heat, Reis, Smooth, Wetting, Flat, Drag, Ruga, Grooves, Transfer, Silicon, Gecko, Completely, States, Lotus, Adhesion, Rough, Ramp, Rubbery, Vibration, Areal, Sliding, Structures, Understanding, Folds, Leach, Balls, Aalto, Replica, Model, …

Show articles in this group »

More news from Ruhr-University Bochum

A Semi-artificial Leaf Faster Than 'Natural' Photosynthesis
In leaves, photosystem 1 (PS1) absorbs light and its energy is finally utilized for the conversion of carbon dioxide to biomass. Photovoltaic devices, mostly build from silicon based semiconductors, also harness solar light but produce electricity. One approach for the development of cheaper and renewable photovoltaics consists in replacing the semi-conductor with the isolated membrane protein complexes of photosynthesis. Prof. Dr. Matthias Rögner's team isolates a highly stable PS1 from thermophilic cyanobacteria that live in a hot spring in Japan. However, the integration…
A Protecting Umbrella Against Oxygen
In a paper published this week in the journal Nature Chemistry, researchers from the Center for Electrochemical Sciences – CES at the Ruhr-University Bochum and from the Max-Planck-Institute for Chemical Energy Conversion in Mülheim an der Ruhr report a novel concept to work with efficient and possibly cheaper catalysts. A kind of buffer protects the catalysts against the hostile conditions encountered in fuel cells, which have been to date dismissed utilization. The scientists report in the current issue of Nature Chemistry. …
Preterm Children Do Not Have an Increased Risk for Dyscalculia
Preterm children do not suffer from dyscalculia more often than healthy full term children. Dr Julia Jäkel, a developmental psychologist from Bochum, and her colleague Prof Dr Dieter Wolke from the University of Warwick, UK proved this thesis to be true in their analyses – thus refuting previous scientific studies. Unlike other studies, the researchers took the children's IQ into consideration. Dyscalculia in preterm children often impossible to diagnose
RUB Chemists Develop Novel Catalyst with 2 Functions
Chemists at the Ruhr-Universität Bochum have made a decisive step towards more cost-efficient regenerative fuel cells and rechargeable metal-air batteries. They developed a new type of catalyst on the basis of carbon, which can facilitate two opposite reactions: electrolysis of water and combustion of hydrogen with oxygen. A catalyst of this kind might make the storage of wind and solar energy and the manufacture of cost-efficient batteries, for example for electric cars, possible. The team published their report in the "International Edition" of…
Sandalwood Scent Facilitates Wound Healing And Skin Regeneration
Skin cells possess an olfactory receptor for sandalwood scent, as researchers at the Ruhr-Universität Bochum have discovered. Their data indicate that the cell proliferation increases and wound healing improves if those receptors are activated. This mechanism constitutes a possible starting point for new drugs and cosmetics. The team headed by Dr Daniela Busse and Prof Dr Dr Dr med habil Hanns Hatt from the Department for Cellphysiology published their report in the "Journal of Investigative Dermatology". …
'Work Environment' Affects Protein Properties
Under the tutelage of Junior Professor Dr Simon Ebbinghaus, researchers from Bochum have demonstrated that the water surrounding the dissolved substances inside the cell plays a crucial role with regard to protein stability, which has frequently been neglected in the past. The researchers have published the results of their study, gained by means of simple model systems and thermodynamic analyses, in the Journal of the American Chemical Society (JACS). The results have been obtained following a collaboration under the umbrella of the Excellence…
Related »

Researchers Develop Optical Displays from Water And Air
By Aalto University
For many years, scientists have been pursuing ways to mimic the perplexing capability of the lotus leaf to repel water. Lotus leaves hate water so much that droplets effortlessly …
Morphable Surfaces Could Cut Air Resistance
By Massachusetts Institute of Technology
CAMBRIDGE, Mass-- There is a story about how the modern golf ball, with its dimpled surface, came to be: In the mid-1800s, it is said, new golf balls were …
Shanghai Scientists Challenge Classical Phenomenon That Water Always Completely Wets Water
By Science China Press
The molecular scale behavior of water at a solid/liquid interface holds fundamental significance in a diverse set of technical and scientific contexts, ranging from the efficiency of oil mining …
Stone Age Tools Help to Streamline Modern Manufacturing
By National Physical Laboratory
Innovative research published by the National Physical Laboratory (NPL) and the University of Bradford uses laser microscopes to explore how stone tools were used in prehistory, and the process …
Better Surfaces Could Help Dissipate Heat
By Massachusetts Institute of Technology
CAMBRIDGE, Mass. -- Cooling systems that use a liquid that changes phase — such as water boiling on a surface — can play an important part in many developing …
Near-atomically Flat Silicon Could Help Pave the Way to New Chemical Sensors
By American Institute of Physics
Silicon is the workhorse of the electronics industry, serving as the base material for the tiny transistors that make it possible for digital clocks to tick and computers to …
More » 
© Newsline Group  |  About  |  Privacy Policy  |  Feedback  |  Mobile  |  Japanese Edition
All contents are copyright of their owners except U.S. Government works. U.S. Government works are assumed to be in the public domain unless otherwise noted. Everything else copyright ScienceNewsline.