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CATEGORIES:CQIF Seminar
SUMMARY:Zeno goes to Copenhagen - Kelvin McQueen
DTSTART;TZID=Europe/London:20200123T141500
DTEND;TZID=Europe/London:20200123T151500
UID:TALK128326AThttp://talks.cam.ac.uk
URL:http://talks.cam.ac.uk/talk/index/128326
DESCRIPTION:Measurement-collapse interpretations of quantum me
 chanics [MCIs] take the orthodox textbook formulat
 ion of quantum mechanics literally. In particular\
 , they entail that collapse is a real physical pro
 cess that\nis caused by measurement. The standard 
 objection to MCIs is the measurement problem: 'mea
 surement' is too vague to be used in the formulati
 on of a physical theory. However\, this objection 
 is inconclusive. For example\, Wigner showed how '
 measurement' could be analyzed in terms of conscio
 us observation\, and it is possible to make this l
 atter notion precise in terms of modern mathematic
 al theories of consciousness such as the integrate
 d information theory.\n\nHere\, I pose a more seri
 ous objection to MCIs based on the the quantum Zen
 o effect.  The objection can be posed as a dilemma
 : in MCIs\, either measurement can superpose or it
  cannot.  If it can the dynamics are ill-defined\;
 \nif it cannot\, then measurements can never start
  or finish. I conclude by considering an MCI-like 
 theory that avoids the dilemma by combining the in
 tegrated information theory of consciousness with 
 the continuous\nspontaneous localization theory of
  collapse.
LOCATION:MR13\, Centre for Mathematical Sciences\, Wilberfo
 rce Road\, Cambridge
CONTACT:Adrian Kent
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