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SUMMARY:Stochastic Einstein Locality Revisited - Jeremy Butterfield\, Trin
 ity College Cambridge
DTSTART:20061016T153000Z
DTEND:20061016T170000Z
UID:TALK5713@talks.cam.ac.uk
CONTACT:Jeremy Nicholas Butterfield
DESCRIPTION:I discuss  various formulations of stochastic Einstein localit
 y (SEL)\, which is a version of the idea of relativistic causality\, i.e. 
 the idea that influences propagate at most as fast as light. SEL is simila
 r to Reichenbach's Principle of the Common Cause (PCC)\, and Bell's Local 
 Causality. \n\nMy main aim is to discuss formulations of SEL for a fixed b
 ackground spacetime.  I previously argued that SEL is violated by the outc
 ome dependence shown by Bell correlations\, both in quantum mechanics and 
 in quantum field theory. Here I  re-assess those verdicts in the light of 
 some recent literature which argues that outcome dependence does not viola
 te the PCC. I argue that the verdicts about SEL still stand. \n\nFinally\,
  I briefly discuss how to formulate relativistic causality if there is no 
 fixed background spacetime. 
LOCATION:Meeting Room 14\, Centre for Mathematical Sciences
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