Weinberg-Witten Theorem: Theoretical Physics, Steven Weinberg, Edward Witten, Supergravity, Emergence, Technicolor (physics), Particle Physics, Lorentz Covariance, Conserved Current, Massless Particle

 
9786130364946: Weinberg-Witten Theorem: Theoretical Physics, Steven Weinberg, Edward Witten, Supergravity, Emergence, Technicolor (physics), Particle Physics, Lorentz Covariance, Conserved Current, Massless Particle
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. 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."

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Lambert M. Surhone
Publicado por Betascript Publishers Feb 2010 (2010)
ISBN 10: 6130364946 ISBN 13: 9786130364946
Nuevo Taschenbuch Cantidad disponible: 1
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BuchWeltWeit Inh. Ludwig Meier e.K.
(Bergisch Gladbach, Alemania)
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Descripción Betascript Publishers Feb 2010, 2010. Taschenbuch. Condición: Neu. Neuware - 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. 100 pp. Englisch. Nº de ref. del artículo: 9786130364946

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2.

Lambert M. Surhone
Publicado por Betascript Publishers Feb 2010 (2010)
ISBN 10: 6130364946 ISBN 13: 9786130364946
Nuevo Taschenbuch Cantidad disponible: 1
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Rheinberg-Buch
(Bergisch Gladbach, Alemania)
Valoración
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Descripción Betascript Publishers Feb 2010, 2010. Taschenbuch. Condición: Neu. Neuware - 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. 100 pp. Englisch. Nº de ref. del artículo: 9786130364946

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