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Latest Quantum Electronics Stories

2012-05-25 10:25:58

Researchers are edging toward the creation of new optical technologies using "nanostructured metamaterials" capable of ultra-efficient transmission of light, with potential applications including advanced solar cells and quantum computing. The metamaterial - layers of silver and titanium oxide and tiny components called quantum dots - dramatically changes the properties of light. The light becomes "hyperbolic," which increases the output of light from the quantum dots. Such materials...

Efficient, Tunable Interface For Quantum Networks
2012-05-23 12:59:16

Quantum technologies promise to redefine the landscape of information processing and communication. We already live in an information age, in which vast amounts of data are sent around the world over optical fibers, but future quantum networks may be many times more powerful. These networks will require interfaces that can transfer information from quantum processors onto light particles (photons). Such interfaces will allow optical fibers to transmit information-bearing photons between...

2012-05-21 13:24:35

Medical uses for quantum dots -- tiny luminescent crystals -- could include image-guided surgery, light-activated therapies and sensitive diagnostic tests A pioneering study to gauge the toxicity of quantum dots in primates has found the tiny crystals to be safe over a one-year period, a hopeful outcome for doctors and scientists seeking new ways to battle diseases like cancer through nanomedicine. The research, which will appear on May 20 in Nature Nanotechnology online, is likely the...

2012-05-04 09:12:36

Switching light with light: only 140 photons are needed An optical switch developed at the Joint Quantum Institute (JQI) spurs the prospective integration of photonics and electronics. What, isn't electronics good enough? Well, nothing travels faster than light, and in the effort to speed up the processing and transmission of information, the combined use of light parcels (photons) along with electricity parcels (electrons) is desirable for developing a workable opto-electronic protocol....

Single Nanomaterial Yields Many Laser Colors
2012-04-30 07:46:35

Engineers at Brown University and QD Vision Inc. have created nanoscale single crystals that can produce the red, green, or blue laser light needed in digital displays. The size determines color, but all the pyramid-shaped quantum dots are made the same way of the same elements. In experiments, light amplification required much less power than previous attempts at the technology. The team´s prototypes are the first lasers of their kind. Red, green, and blue lasers have become small...

2012-04-26 12:08:48

Liquid solar cells are cheaper, more flexible than existing solar options Scientists at USC have developed a potential pathway to cheap, stable solar cells made from nanocrystals so small they can exist as a liquid ink and be painted or printed onto clear surfaces. The solar nanocrystals are about four nanometers in size – meaning you could fit more than 250,000,000,000 on the head of a pin – and float them in a liquid solution, so "like you print a newspaper, you can print...

2012-04-25 21:26:15

Liquid solar cells are cheaper, more flexible than existing solar options Scientists at USC have developed a potential pathway to cheap, stable solar cells made from nanocrystals so small they can exist as a liquid ink and be painted or printed onto clear surfaces. The solar nanocrystals are about four nanometers in size – meaning you could fit more than 250,000,000,000 on the head of a pin – and float them in a liquid solution, so "like you print a newspaper, you can print...

2012-03-28 08:34:39

The theory of quantum metabolism is the idea that quantum processes, such as entanglement, influence the metabolism of cells. This idea offers scientists a new explanation for the metabolic changes that cause healthy cells to transform into cancerous ones. The metamorphosis gives cancerous cells the ability to outcompete healthy cells for space and nutrients, causing the disease to spread. Understanding the quantum metabolic underpinnings of the transformation could potentially lead to new...

2012-01-31 06:17:48

Rice University researchers first to see superfluorescence from solid-state material In a flash, the world changed for Tim Noe — and for physicists who study what they call many-body problems. The Rice University graduate student was the first to see, in the summer of 2010, proof of a theory that solid-state materials are capable of producing an effect known as superfluorescence. That can only happen when "many bodies" — in this case, electron-hole pairs created in a...

2012-01-09 19:45:20

Rice University researchers tag excitons in search for hues' clues Rice University researchers have figured out what gives armchair nanotubes their unique bright colors: hydrogen-like objects called excitons. Their findings appear in the online edition of the Journal of the American Chemical Society. Armchair carbon nanotubes — so named for the "U"-shaped configuration of the atoms at their uncapped tips — are one-dimensional metals and have no band gap. This means...


Word of the Day
snash
  • To talk saucily.
  • Insolent, opprobrious language; impertinent abuse.
This word is Scots in origin and probably imitative.