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Weinberg Witten Theorem
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High Quality Content by WIKIPEDIA articles! In theoretical physics, the Weinberg Witten theorem (WW), proved by Steven Weinberg and Edward Witten, states that no massless (composite or elementary) particles with spin j greater than one are consistent with any renormalizable Lorentz-invariant quantum field theory excluding only (nonrenormalizable) theories of gravity and supergravity. Weinberg and Witten consider the so-called emergent theories to be misguided. During the 80's, preon theories, technicolor and the like were very popular and some people were speculating that gravity might be an emergent phenomenon or that gluons might be composite. So, they came up with a no-go theorem that excludes, under very general assumptions, the hypothetical composite and emergent theories. Decades later new theories of emergent gravity are proposed and the mainstream high-energy physicists are still using this theorem to "debunk" such theories. Because most of these emergent theories aren't Lorentz covariant, the WW theorem doesn't apply. The violation of Lorentz covariance however leads to other problems.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130364946
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Sprache Englisch
- Genre Physik & Astronomie
- Größe H220mm x B150mm x T6mm
- Jahr 2010
- EAN 9786130364946
- Format Fachbuch
- ISBN 978-613-0-36494-6
- Titel Weinberg Witten Theorem
- Untertitel Theoretical Physics, Steven Weinberg, Edward Witten, Supergravity, Emergence, Technicolor (physics), Particle Physics, Lorentz Covariance, Conserved Current, Massless Particle
- Gewicht 167g
- Herausgeber VDM Verlag Dr. Müller e.K.
- Anzahl Seiten 100
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