Akaki Rusetsky, University of Bonn
We discuss the concept of spontaneous symmetry breaking and illustrate it with a general example. We consider Wigner-Weyl and Nambu-Goldstone realisations of symmetry in the quantum theory. Next, we state Goldstone’s theorem and sketch its proof. We discuss why quantum chromodynamics is not realised in the Wigner-Weyl mode. We also consider different order parameters of spontaneous chiral symmetry breaking.
Szymańska, Emilia, "Spontaneous Symmetry Breaking and Goldstone Theorem" (2023). 2023 REYES Proceedings. 9.