home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky sci.physics:21928 alt.sci.physics.new-theories:2654
- Newsgroups: sci.physics,alt.sci.physics.new-theories
- Path: sparky!uunet!well!sarfatti
- From: sarfatti@well.sf.ca.us (Jack Sarfatti)
- Subject: Budnik's objection against Aspect's expt. is wrong.
- Message-ID: <C03q7G.Mr4@well.sf.ca.us>
- Sender: news@well.sf.ca.us
- Organization: Whole Earth 'Lectronic Link
- Date: Thu, 31 Dec 1992 02:14:04 GMT
- Lines: 52
-
-
- Sarfatti comments on:
- From: franl@centerline.com (Fran Litterio)
- Subject: Re: Aspect's experiment
- Date: 30 Dec 92 17:14:03
- Organization: CenterLine Software, Inc.
- Lines: 28
- NNTP-Posting-Host: 140.239.3.116
- In-reply-to: paul@mtnmath.UUCP's message of 30 Dec 92 16:53:16 GMT
-
- -paul@mtnmath.UUCP (Paul Budnik) writes:
-
- > However the experiment is still conceptually simple. You change the
- > relative angle between polarizers and observe the times of detections
- > at both locations. You will see a clear shift from many joint detections
- > to few joint detections or the reverse depending on what direction
- > you are changing the angles. QM predicts that this change will be fast
- > enough that no local process could generate such a result. The time
- > will be less that it takes light to travel from either detector to the
- > *more distant* polarizer. To prove this is truly the case you need an
- > experiment where you directly measure the time when you change
- > polarizer angles and compare this time to a statistical estimate of
- > the time when the probability for joint detections changed. This estimate
- > must be based on direct observations of detections.
-
- Won't this experiment only allow conclusions of the form "There is a
- 33% probability that a non-local process is at work"?
-
- After all, you might see the first third of the shift from few-to-many
- joint detections happen in less time than it takes light to travel to
- each detector from the more distant polarizer. The remainder of the
- shift happens "too late" to be evidence of a non-local process.
-
- *Not only that but Budnik' very conceptualization of the point of the
- experiment is not correct.
- Specifically, "QM predicts that this change will be fast enough that no
- local process could
- generate such a result." is wrong-headed. All we need show is that the joint
- detection
- probabilities obey the law (cos@)^2/2 suitably corrected for low detector
- efficiencies etc. in such a
- way that for each coincidence, the choice of relative angle between
- polarizers is made in a time
- short compared to light flight time between the polarizers. This is what
- Aspect did with his
- commutator acoustic driven switches. Budnik's criterion for what must be
- done is totally way out
- in left-field and I bet Aspect, Clauser, Shimony and other pundits would not
- agree with him.
- Is there anyone else reading this who agrees with Budnik and can defend it
- clearly - I could be
- wrong but I doubt it.* Sarfatti
-