Heidegger

Hi Guys,
Doesn’t this provide evidence against the chaos theory, so beloved of
muddle-loving Heideggerians and other kneebenders, for if photonic
wavelength/particle representations can be predicted this accurately it seems to me it does?
[see the paragraph I have made bold near the bottom.

Ultra-Dense Optical Storage — On One Photon
_Science Daily_  http://www.sciencedaily.com/) — Researchers at the
University of Rochester have made an optics breakthrough that allows them to encode
an entire image’s worth of data into a photon, slow the image down for
storage, and then retrieve the image intact.

First image stored and retrieved from a single photon. (Credit: University
of Rochester)
While the initial test image consists of only a few hundred pixels, a
tremendous amount of information can be stored with the new technique.
The image, a “UR” for the University of Rochester, was made using a single
pulse of light and the team can fit as many as a hundred of these pulses at
once into a tiny, four-inch cell. Squeezing that much information into so small
a space and retrieving it intact opens the door to optical buffering–storing
information as light.
“It sort of sounds impossible, but instead of storing just ones and zeros,
we’re storing an entire image,” says John Howell, associate professor of
physics and leader of the team that created the device, which is revealed in
today’s online issue of the journal Physical Review Letters. “It’s analogous to the
difference between snapping a picture with a single pixel and doing it with
a camera–this is like a 6-megapixel camera.”
“You can have a tremendous amount of information in a pulse of light, but
normally if you try to buffer it, you can lose much of that information,” says
Ryan Camacho, Howell’s graduate student and lead author on the article. “We’re
showing it’s possible to pull out an enormous amount of information with an
extremely high signal-to-noise ratio even with very low light levels.”
Optical buffering is a particularly hot field right now because engineers are
trying to speed up computer processing and network speeds using light, but
their systems bog down when they have to convert light signals to electronic
signals to store information, even for a short while.
“The parallel amount of information John has sent all at once in an image is
enormous in comparison to what anyone else has done before.”
Howell’s group used a completely new approach that preserves all the
properties of the pulse. The buffered pulse is essentially a perfect original; there
is almost no distortion, no additional diffraction, and the phase and
amplitude of the original signal are all preserved. Howell is even working to
demonstrate that quantum entanglement remains unscathed.
To produce the UR image, Howell simply shone a beam of light through a
stencil with the U and R etched out. Anyone who has made shadow puppets knows how
this works, but Howell turned down the light so much that a single photon was
all that passed through the stencil.
Quantum mechanics dictates some strange things at that scale, so that bit of
light could be thought of as both a particle and a wave. As a wave, it
passed through all parts of the stencil at once, carrying the “shadow” of the UR
with it. The pulse of light then entered a four-inch cell of cesium gas at a
warm 100 degrees Celsius, where it was slowed and compressed, allowing many
pulses to fit inside the small tube at the same time.
“The parallel amount of information John has sent all at once in an image is
enormous in comparison to what anyone else has done before,” says Alan
Willner, professor of electrical engineering at the University of Southern
California and president of the IEEE Lasers and Optical Society. “To do that and be
able to maintain the integrity of the signal–it’s a wonderful achievement.”
Howell has so far been able to delay light pulses 100 nanoseconds and
compress them to 1 percent of their original length. He is now working toward
delaying dozens of pulses for as long as several milliseconds, and as many as
10,000 pulses for up to a nanosecond.
“Now I want to see if we can delay something almost permanently, even at the
single photon level,” says Howell. “If we can do that, we’re looking at
storing incredible amounts of information in just a few photons.”
Note: This story has been adapted from a news release issued by University
Of Rochester.

regards,

Jud Evans.
Personal Website: http://evans-experientialism.freewebspac…

regards,

Jud Evans.
Personal Website: http://evans-experientialism.freewebspac…

Posted on Wednesday, January 24th, 2007 at 10:40 am
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