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SUMMARY:The computational power of projective measurements  - Stefan Weige
 rt\, University of York
DTSTART:20161208T141500Z
DTEND:20161208T151500Z
UID:TALK67574@talks.cam.ac.uk
CONTACT:Steve Brierley
DESCRIPTION:To measure an observable of a quantum mechanical system leaves
  it \nin one of its eigenstates\, while the result of the measurement will
  be \none of its eigenvalues. This process is shown to be a computational 
 \nresource: it becomes possible\, in principle\, to diagonalize finite Her
 mitean matrices by quantum mechanical measurements only. If the zeros of a
  \npolynomial are known to be real\, then they can be found by a similar m
 ethod.
LOCATION:MR12\, Centre for Mathematical Sciences\, Wilberforce Road\, Camb
 ridge
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