The Nambu-Goldstone theorem in non-relativistic systems

29 Jul 2017 Arraut Ivan

In non-relativistic systems, when there is spontaneous symmetry breaking, the number of Nambu-Goldstone bosons ($n_{NG}$) are not necessarily equal to the number of broken generators ($n_{BG}$). Here we use the method of operators for analyzing the necessary conditions in order to obtain the correct dispersion relation for the Nambu-Goldstone bosons...

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  • HIGH ENERGY PHYSICS - THEORY
  • OTHER CONDENSED MATTER
  • GENERAL RELATIVITY AND QUANTUM COSMOLOGY