Informal Phenomenology Seminar - IAS - Murayama, Kavli IPMU, Japan - “What's wrong with Goldstone?”

Oct 9, 2013, 1:30 pm2:30 pm
Bloomberg Lecture Hall - Institute for Advanced Study


Event Description
Spontaneous Symmetry Breaking is a very universal concept applicable for a wide range of subjects: crystal, superfluid, neutron stars, Higgs boson, magnets, and many others. Yet there is a variety in the spectrum of gapless excitations even when the symmetry breaking patterns are the same. We unified all known examples in a single-line Lagrangian of the low-energy effective theory. In addition, we now have a better understanding of what happens with spacetime symmetries, and predict gaps for certain states exactly based on symmetries alone.