Re: EPR, Bell, and FTL Bandwidth (fwd)
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From: Eric Cordian <emc@wire.insync.net> Subject: Re: EPR, Bell, and FTL Bandwidth (fwd) Date: Wed, 28 Jan 1998 18:30:56 -0600 (CST)
No. Doing something to the first photon does not do anything to the second, much less change its polarization. The operators for polarization for the two photons commute, so they are simultaneously measureable.
This is the last I'm going to respond to this. The photons are 'entangled' which means their states are linked and co-dependant. [rest deleted] ____________________________________________________________________ | | | The most powerful passion in life is not love or hate, | | but the desire to edit somebody elses words. | | | | Sign in Ed Barsis' office | | | | _____ The Armadillo Group | | ,::////;::-. Austin, Tx. USA | | /:'///// ``::>/|/ http://www.ssz.com/ | | .', |||| `/( e\ | | -====~~mm-'`-```-mm --'- Jim Choate | | ravage@ssz.com | | 512-451-7087 | |____________________________________________________________________|
Jim Choate writes:
This is the last I'm going to respond to this.
The photons are 'entangled' which means their states are linked and co-dependant.
The states are no more "co-dependent" than two copies of the same book at different locations on the planet are. The primary difference in the quantum mechanical case is that because of superposition, each might be a mixed state of several books, and only the act of measurement would disclose which one, and that a decision to examine one of several non-commuting observables might be made after the books had been produced and were in transit. This would *NOT* imply in any way that examination of one book had any physical effect on the other, although correlation of measurements made on both books might demonstrate non-local collapse of the QM wavefunction, which is not, and never has been, a physical quantity. I can think of even a more extreme case. Suppose I have the same Barium atom in two laser traps tuned to different excited states and separated by a distance of 1,000 miles. I now have a 50/50 superposition of one state here, and a different state 1000 miles away. Even with the *SAME* particle in two different places, nothing I do to it in one place is detectable by a scientist in its other location, and the only correlations which demonstrate non-local effects require data from measurements from both of them. -- Eric Michael Cordian 0+ O:.T:.O:. Mathematical Munitions Division "Do What Thou Wilt Shall Be The Whole Of The Law"
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Jim Choate