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Black Hole Constraints on Varying Fundamental Constants
Jane H MacGibbon
Physical Review Letters
last revised 13 Aug 2007
Abstract: Here we apply the Generalized Second Law of Thermodynamics and derive upper limits on the variation in the fundamental constants. The maximum variation in the electronic charge permitted for black holes accreting and emitting in the present cosmic microwave background corresponds to a variation in the fine structure constant of ((Delta alpha) / alpha) ~ 2 x 10^-23 per second. This value matches the variation measured by Webb et al. using absorption lines in the spectra of distant quasars and suggests the variation mechanism may be a coupling between the electron and the cosmic photon background.

1 posted on 08/14/2007 10:52:13 AM PDT by SunkenCiv
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To: AdmSmith; bvw; callisto; ckilmer; dandelion; FairOpinion; ganeshpuri89; gobucks; KevinDavis; ...

2 posted on 08/14/2007 10:52:32 AM PDT by SunkenCiv (Profile updated Tuesday, August 14, 2007. https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Yeah, I’ve been wondering how that worked.


3 posted on 08/14/2007 10:56:22 AM PDT by dblshot
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To: SunkenCiv

Photon soup is too light. I prefer photon chowder. I discovered photon chowder by accident; I lepton the soup too long.


4 posted on 08/14/2007 11:02:26 AM PDT by Greg F (The Congress voted and it didn't count and . . . then . . . it didn't happen at all.)
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