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Researchers Design Triple Quantum Dot for Quantum Information Applications

Researchers Design Triple Quantum Dot for Quantum Information Applications

Nanotechnology / Nanophysics

created Nov 30, 2009 | popularity 4.7 / 5 (16) | comments 0

(PhysOrg.com) -- While quantum dots have existed since the 1980s, only in the past decade have physicists successfully created lateral few-electron single quantum dots. These quantum dots enable physicists ...


A light touch: Iron complexes as efficient catalysts for the light-driven extraction of hydrogen from water

Chemistry / Materials Science

created Dec 02, 2009 | popularity 5 / 5 (3) | comments 3

(PhysOrg.com) -- Hydrogen is a promising alternative energy carrier that can be efficiently converted into electrical energy in fuel cells. One hurdle to the introduction of sustainable hydrogen technology is the fact that ...


Tapering a Free-Electron Laser to Extract More Juice

Tapering a Free-Electron Laser to Extract More Juice

Physics / General Physics

created Nov 20, 2009 | popularity 4 / 5 (1) | comments 0

(PhysOrg.com) -- Researchers from the NSLS and Science Applications International Corporation (SAIC) have demonstrated a technique that could be used to significantly improve the quantity and quality of light ...


Measuring Electron Orbitals

Measuring Electron Orbitals

Physics / General Physics

created Nov 16, 2009 | popularity 5 / 5 (8) | comments 0

(PhysOrg.com) -- For the first time, it has been possible to measure electron density in individual molecular states using what is known as the photoelectric effect. Now published in Science, this method repres ...


Mimicking nature, scientists can now extend redox potentials

Mimicking nature, scientists can now extend redox potentials

Chemistry / Biochemistry

created Nov 04, 2009 | popularity 4.8 / 5 (5) | comments 0

(PhysOrg.com) -- New insight into how nature handles some fundamental processes is guiding researchers in the design of tailor-made proteins for applications such as artificial photosynthetic centers, long-range ...


Microscopy reveals structure of calcite shells

Microscopy reveals structure of calcite shells

Chemistry / Materials Science

created Nov 30, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Lara Estroff and colleagues have taken a deep, detailed look at the way lab-created calcite crystals, similar to those found in nature, grow in tandem with proteins and other large molecules.


Novel nano-devices developed by U of T researchers

Nanotechnology / Nanomaterials

created Nov 10, 2009 | popularity 4 / 5 (1) | comments 0

(PhysOrg.com) -- University of Toronto researchers continue to uncover the mysteries of space. But even the best astronauts in the world are stymied if the spaceship doesn't launch. When the countdown stops, it is often because ...


Argonne 'homegrown' hybrid solar cell aims for low-cost power

Argonne 'homegrown' hybrid solar cell aims for low-cost power

Nanotechnology / Nanomaterials

created Nov 10, 2009 | popularity 4.3 / 5 (12) | comments 3

(PhysOrg.com) -- Scientists at the U.S. Department of Energy’s (DOE) Argonne National Laboratory have refined a technique to manufacture solar cells by creating tubes of semiconducting material and then "growing" ...


New Digital 'Electronics' Concept May Continue Moore's Law

New Digital 'Electronics' Concept May Continue Moore's Law

Nanotechnology / Nanophysics

created Nov 05, 2009 | popularity 4.6 / 5 (75) | comments 12

(PhysOrg.com) -- Computers of the future could be operating not on electrons, but on tiny waves traveling through an electron "fluid," if a new proposal is successful. The new circuit design, recently introduced ...


First Bose-Einstein condensation of strontium

First Bose-Einstein condensation of strontium

Physics / Quantum Physics

created Nov 09, 2009 | popularity 4.8 / 5 (10) | comments 5

In an international first, scientists from the Institute of Quantum Optics and Quantum Information (IQOQI, Austria) produced a Bose-Einstein condensate of the alkaline-earth element strontium, thus narrowly ...


JQI researchers create entangled photons from quantum dots

Physics / Quantum Physics

created Nov 18, 2009 | popularity 4.3 / 5 (8) | comments 1

To exploit the quantum world to the fullest, a key commodity is entanglement—the spooky, distance-defying link that can form between objects such as atoms even when they are completely shielded from one another. Now, physicists ...


Lasers used to make first boron-nitride nanotube yarn

Lasers used to make first boron-nitride nanotube yarn (w/ Video)

Nanotechnology / Nanomaterials

created Dec 02, 2009 | popularity 4.8 / 5 (12) | comments 2

(PhysOrg.com) -- Researchers have used lasers to create the first practical macroscopic yarns from boron nitride fibers, opening the door for an array of applications, from radiation-shielded spacecraft to ...


Researchers take the lead out of piezoelectrics

Researchers take the lead out of piezoelectrics

Physics / Condensed Matter

created Nov 13, 2009 | popularity 3 / 5 (2) | comments 0

There is good news for the global effort to reduce the amount of lead in the environment and for the growing array of technologies that rely upon the piezoelectric effect. A lead-free alternative to the current ...


Scientists gain new understanding of disease-causing bacteria

Biology / Cell & Microbiology

created Nov 30, 2009 | popularity not rated yet | comments 0

A team of scientists from The Forsyth Institute, the University of Connecticut Health Center, the CDC and the Wadsworth Center, have used state-of-the-art technology to elucidate the molecular architecture of Treponema pallidum, ...


Unique Uranium Source in Naturally Bioreduced Sediment

Unique Uranium Source in Naturally Bioreduced Sediment

Space & Earth / Environment

created Nov 18, 2009 | popularity 4 / 5 (4) | comments 0

(PhysOrg.com) -- A recently published Pacific Northwest National Laboratory study of a naturally bioreduced sediment sample from a former uranium mill tailings site reveals insights that enhance understanding ...