Talk:Klein-Gordon equation
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When did they come up with this mod to Schrodingers equation??. A bit of history would be good here.--Light current 03:56, 2 October 2005 (UTC)
- From memory, the equation came very shortly after Schrodinger's equation. It was the first attempt to form a relativistic wave equation. I am pretty sure it predated the Dirac equation. I think it was a pretty obvious extension of Schrodinger's equation to the relativistic case, which is why lots of people thought of it at the same time. --DannyWilde 04:15, 2 October 2005 (UTC)
[edit] Particles?
It seems inappropriate to say that the equation applies to particles in anyway, since the modern interpretation is that it is the equation satisfied by all quantum fields (not just scalars/pseudoscalars). Threepounds 02:49, 15 November 2005 (UTC)
Perhaps it would be useful to point out that while the Klein-Gordon equation yields the incorrect result for spin-1/2 particles (one needs the Dirac equation for that), it does yield the correct results for spin-0 particles such as pions.--Brennan 22:57, 27 January 2006 (UTC)
[edit] B. Roy Frieden's anonymous POV-pushing edits
B. Roy Frieden claims to have developed a "universal method" in physics, based upon Fisher information. He has written a book about this. Unfortunately, while Frieden's ideas initially appear interesting, his claimed method is conversial: Frieden's work is highly controversial; see for example
- Binder, Philippe M. (2000). "Physics from Fisher Information: A Unification (a review)". American Journal of Physics 68: 1064-1065.
- Kibble, T. W. B. (1999). "Physics from Fisher Information: A Unification (a review)". Contemporary Physics 40: 1999. (the reviewer has some positive comments but concludes that Frieden's work is "misguided")
- Case, James (2000). "An Unexpected Union---Physics and Fisher Information". SIAM News July 17. eprint (highly favorable)
- Matthews, Robert (1999). "Physics and Fisher Information (a review)". New Scientist January. unauthorized electronic reprint
- Physics from Fisher Information: A Unification (a review) from Cosma Shalizi (Computer Science, University of Michigan) (highly critical)
- Physics from Fisher Information (a review) from R. F. Streater (Mathematics, Kings College, London) (highly critical)
- Physics from Fisher Information thread from sci.physics.research, May 1999 (mostly critical)
- Fisher Information - Frieden unification Of Physics thread from sci.physics.research, October 1999 (mostly critical)
Note that Frieden is Prof. Em. of Optical Sciences at the University of Arizona. The data.optics.arizona.edu anon has used the following IPs to make a number of questionable edits:
- 150.135.248.180 (talk • contribs)
- 20 May 2005 confesses to being Roy Frieden in real life
- 6 June 2006: adds cites of his papers to Extreme physical information
- 23 May 2006 adds uncritical description of his own work in Lagrangian and uncritically cites his own controversial book
- 22 October 2004 attributes the uncertainty principle to the Cramer-Rao inequality, which is potentially misleading
- 21 October 2004 adds uncritical mention of his controversial claim that the Maxwell-Boltzmann distribution can be obtained via his "method"
- 21 October 2004 adds uncritical mention of his controversial claim that the Klein-Gordon equation can be "derived" via his "method"
- 150.135.248.126 (talk • contribs)
- 9 September 2004 adds uncritical description of his work to Fisher information
- 8 September 2004 adds uncritical description of his highly dubious claim that EPI is a general approach to physics to Physical information
- 16 August 2004 confesses IRL identity
- 13 August 2004 creates uncritical account of his work in new article, Extreme physical information
- 11 August 2004 creates his own wikibiostub, B Roy Frieden
These POV-pushing edits should be modified to more accurately describe the status of Frieden's work.---CH 23:54, 16 June 2006 (UTC)
