Latest Quantum Electronics Stories

Quantum Dots Used To Generate Electricity From Waste Heat
2013-02-14 14:46:17

University of Rochester A new type of nanoscale engine has been proposed that would use quantum dots to generate electricity from waste heat, potentially making microcircuits more efficient. "The system is really a simple one, which exploits certain properties of quantum dots to harvest heat," Professor Andrew Jordan of the University of Rochester said. "Despite this simplicity, the power it could generate is still larger than any other nanoengine that has been considered until now."...

MIT Researchers Create Best Ever Quantum Dots
2013-02-04 15:37:24

Michael Harper for redOrbit.com — Your Universe Online In the 1980s, scientists discovered very tiny particles that are capable of emitting light when exposed to ultraviolet light. These particles — now known as quantum dots — are made of a semiconductor material and can display light in a wide array of colors depending on the size of the particle. Though these dots initially showed great promise for a number of purposes, several limitations have prevented them from being...

2012-10-09 21:55:27

If quantum computers are ever going to perform all those expected feats of code-breaking and number crunching, then their component qubits---tiny ephemeral quantum cells held in a superposition of internal states---will have to be protected from intervention by the outside world. In other words, decoherence, the loss of the qubits´ quantum integrity, has to be postponed. Now theoretical physicists at the Joint Quantum Institute (JQI) and the University of Maryland have done an important...

Electrons Enclosed Inside Nano-pyramids
2012-09-28 15:54:14

Quantum dots are nanostructures of semiconducting materials that behave a lot like single atoms and are very easy to produce. Given their special properties, researchers see huge potential for quantum dots in technological applications. Before this can happen, however, we need a better understanding of how the electrons “trapped” inside them behave. Dresden physicists have recently observed how electrons in individual quantum dots absorb energy and emit it again as light. Their...

2012-08-21 00:46:32

New process developed at MIT could enable better LED displays, solar cells and biosensors – and foster basic physics research. Films made of semiconductor nanocrystals – tiny crystals measuring just a few billionths of a meter across – are seen as a promising new material for a wide range of applications. Nanocrystals could be used in electronic or photonic circuits, detectors for biomolecules, or the glowing pixels on high-resolution display screens. They also hold...

Word of the Day
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'