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7:30 pm, Wednesday, April 13, 2011
Different venue! Hennings Building, Room 200
Quantum Computing and Animal Navigation
Klaus Schulten
University of Illinois, Urbana
Quantum computing is all the rage nowadays. But this type of computing may have been discovered and used by living cells billion of years ago. Nowadays migratory birds use a protein, Cryptochrome, which
absorbs weak blue light to produce two quantum-entangled electrons in the
protein, which by monitoring the earth's magnetic field, allows birds to navigate even in bad weather and wind conditions. The lecture tells the
story of this discovery, starting with chemical test tube experiments and
ending in the demonstration that the navigational compass is in the eyes
and can be affected by radio antennas. The story involves theoretical
physicists who got their first paper rejected as "garbage", million dollar
laser experiments by physical chemists to measure the entangled electrons,
and ornithologists who try to 'interrogate' the birds themselves. This
work opens up the awesome possibility that room-temperature quantum
mechanics may be crucial in many biological systems.
To learn more please visit his
webpage.
Additional resources for this talk: slides, video.
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