Spontaneously Broken Spacetime Symmetries and Goldstone's Theorem

2001/10/30 by Ian Low, Aneesh V. Manohar · 1 voice · 30 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #cond-mat #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevlett.88.101602

published as Phys.Rev.Lett. 88 (2002) 101602 · 4 pages; 1 figure; v2: minor corrections. version to appear on PRL

arxiv created 2002/02/21 · arxiv updated 2009/11/30

Abstract

Goldstone's theorem states that there is a massless mode for each broken symmetry generator. It has been known for a long time that the naive generalization of this counting fails to give the correct number of massless modes for spontaneously broken spacetime symmetries. We explain how to get the right count of massless modes in the general case, and discuss examples involving spontaneously broken Poincare and conformal invariance.

Citations

• Structure of Phenomenological Lagrangians. I
• Broken Symmetries

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Discussions

• Dec 20 - Spontaneously broken spacetime symmetries arxiv.org/abs/hep-th/0... Low & Manohar explain why there are often fewer Goldstone modes than broken generators for spacetime symmetries. A goldst [bsky, 13 points, 1 comments]

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