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fishead ...*∞º˙

Groundbreaking Approach Could Impact Fields from Cryptography to Materials Science - 1 views

  • In an important first for a promising new technology, scientists have used a quantum computer to calculate the precise energy of molecular hydrogen. This groundbreaking approach to molecular simulations could have profound implications not just for quantum chemistry, but also for a range of fields from cryptography to materials science. "One of the most important problems for many theoretical chemists is how to execute exact simulations of chemical systems," says author Alán Aspuru-Guzik, assistant professor of chemistry and chemical biology at Harvard University. "This is the first time that a quantum computer has been built to provide these precise calculations."
fishead ...*∞º˙

Spasers set to sum: A new dawn for optical computing - tech - 25 January 2010 - New Sci... - 1 views

  • Dubbed a "spaser", this minuscule lasing object is the latest by-product of a buzzing field known as nanoplasmonics. Just as microelectronics exploits the behaviour of electrons in metals and semiconductors on micrometre scales, so nanoplasmonics is concerned with the nanoscale comings and goings of entities known as plasmons that lurk on and below the surfaces of metals. To envisage what as plasmon is, imagine a metal as a great sea of freely moving electrons. When light of the right frequency strikes the surface of the metal, it can set up a wavelike oscillation in this electron sea, just as the wind whips up waves on the ocean. These collective electron waves - plasmons - act to all intents and purposes as light waves trapped in the metal's surface. Their wavelengths depend on the metal, but are generally measured in nanometres. Their frequencies span the terahertz range - equivalent to the frequency range of light from the ultraviolet right through the visible to the infrared.
Kurt Laitner

Technology Review: Making Materials Untouchable - 2 views

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    interesting, but how would you wash this? perhaps it never gets dirty? If that's the case, I need an entire wardrobe of shirts (or at least a bib) as just about everything I own has a coffee stain on the front somewhere.
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    that reminds me of another material, it doesn't require washing, forget how it did that, uv, silver, what have you - scuffle scuffle - off to find
  •  
    are you still wearing those moose slippers?
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