[PhilPhys] Sigma Club - Jos Uffink at LSE

[R.P.Frigg at lse.ac.uk]

The first Sigma Club talk of this academic year will be given by

 

Jos Uffink,

 

University of Utrecht.

 

Title: Motivating outcome independence: locality versus sufficiency

 

Place and Time: November 23, 5-7pm, Room T206, all welcome. 

 

For maps and directions visit
http://www.lse.ac.uk/resources/mapsAndDirections/

 

For Further information about the Sigma Club and it's upcoming event
visit: 

http://www.lse.ac.uk/collections/CPNSS/projects/SigmaClub/Default.htm

 

 

Abstract:

 

It is well known that the derivation of the Bell Inequality rests on two
major assumptions, usually called outcome independence and parameter
independence.

Parameter independence seems to have a straightforward motivation: it
expresses a non-signalling requirement between space-like separated
sites and  is thus motivated by locality.  The status of outcome
independence is much les clear. Many authors have argued that this
assumption too expresses a locality requirement, in the form of a
"screening off" condition.

 

I will argue that the assumption also admits of an entirely different
interpretation, suggested by the concept of sufficiency in the general
theory of statistical inference. In this view, the assumption of outcome
independence  can be explained as expressing the idea that the hidden
variable is sufficient, i.e. it exhausts all the relevant statistical
information about the measurement outcomes. In this view, the assumption
has no roots in locality at all. 

 

 


Please access the attached hyperlink for an important electronic communications disclaimer: http://www.lse.ac.uk/collections/secretariat/legal/disclaimer.htm
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