Goldstone theorem that states that there is a massless mode for each broken symmetry generator, was discussed. The naive generalization of this counting failed to give the correct number of massless modes for spontaneously broken spacetime symmetries. The method of obtaining correct number of massless modes in the general case was explained. Examples involving spontaneously broken Poincare and conformal invariance were also discussed.
|Original language||English (US)|
|Number of pages||4|
|Journal||Physical Review Letters|
|State||Published - Mar 11 2002|
ASJC Scopus subject areas
- Physics and Astronomy(all)