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- Newsgroups: sci.physics
- Path: sparky!uunet!well!sarfatti
- From: sarfatti@well.sf.ca.us (Jack Sarfatti)
- Subject: Erratum: |a,e,+> = i|a,o,+>
- Message-ID: <BxKnGw.39F@well.sf.ca.us>
- Sender: news@well.sf.ca.us
- Organization: Whole Earth 'Lectronic Link
- Date: Wed, 11 Nov 1992 21:53:19 GMT
- Lines: 54
-
-
- The last line in first version that I may not have aborted was mistyped.
- This is the corrected version.
- I will now lay to rest forever the bogus objection made by Mike Gallis,
- Carlton Caves, Keith Ramsay et-al that my gedankenexperiment requires
- violation of local unitarity in which a finite norm superposition is
- transformed into a zero-norm superposition.
-
- |a,b> = {|a,e,+>|b,e,+> + |a,e,->|b,e,->}/sqrt2
-
- |a,b>' = {e^iphi|a,e,+>|b,e,+> + |b,e,->|a,o,+>}/sqrt2
-
- note that |<a,e,+|a,o,+>| = 1
-
- |a,e,+> = e^ix |a,o,+>
-
- <a,e,+|a,e,-> = 0
-
- <a,o,+|a,o,-> = 0
-
- There is no need to use a transformation that brings two orthogonal states
- into the same state which would violate invariance of inner products and
- norms. The half-wave plate transformation H(o) is
-
- H(o)|a,o,-> = |a,o,+>
-
- H(o)|a,o,+> = |a,o,->
-
- H(o)|a,e,+> = |a,e,+>
-
- H(o)|a,e,-> = |a,e,->
-
- H(o){|a,o,-> - |a,e,+>} = |a,o,+> - |a,e,+> = |a,o,+>[1 - ei^x]
-
- [<a,o,-| - <a,e,+|][|a,o,-> - |a,e,+>]
-
- = <a,o,-|a,o,-> + <a,e,+|a,e,+> - <a,o,-|a,e,+> - <a,e,+|a,o,->
-
- = 1 + 1 - 0 - 0 =2
-
- <a,o,-| - <a,e,+|H(o)*H(o)|a,o,-> - |a,e,+> = |1 - eix|^2 = 2(1 - cosx)
-
- therefore, local unitarity of H(o) (i.e. invariance of inner product)
- requires that x = pi/2
-
- * so that |a,e,+> = i|a,o,+>
-
- (this was mistyped in first version)
-
- QED
-
- There is no violation of local unitarity in my quantum connection signal
- gedankenexperiment in the specific sense falsely claimed by skeptics.
-
-