[Fis] QI and probabilities

To: fis@listas.unizar.es
Subj: [Fis] QI and probabilities

Dear Michael,

Except minor differences such that real valued / non real valued or
discrete / continuous, the probabilities computed for the roll of a die
and those computed for a quantum system are not fundamentally different:
they all obey to the rules in vigor in a probability space.
In this sense, the probabilities computed for a quantum system are
classical, despite that the calculation involves the modulus of the
wave function: it is an additional property which does not preclude
the validity of the properties of ordinary probabilities.

Best regards,

Michel Petitjean, Email: petitjean@itodys.jussieu.fr
ITODYS (CNRS, UMR 7086) ptitjean@ccr.jussieu.fr
1 rue Guy de la Brosse Phone: +33 (0)1 44 27 48 57
75005 Paris, France. FAX : +33 (0)1 44 27 68 14
http://petitjeanmichel.free.fr/itoweb.petitjean.html

From: Michael Devereux <dbar_x@cybermesa.com>
> Dear Jonathan, Andrei, and colleagues,
> ...
> And we know that these probabilities for quantum objects are calculated
> from the complex value of each eigenvector (the probability amplitude)
> but not, as is done classically, by determining the real-valued
> probabilities associated with, for example, each roll of a die. (Again,
> ...

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Received on Mon May 22 10:31:57 2006