Wednesday, November 13, 2013 - 15:00
1 hour (actually 50 minutes)
Host: Dan Goldman, Physics
I introduce a class of dynamical systems which exhibit motion in their lowest-energy states and thus spontaneously break time-translation symmetry. Their Lagrangians have nonstandard kinetic terms and their Hamiltonians are multivalued functions of momentum, yet they are perfectly consistent and amenable to quantization. Possible applications to condensed matter systems and cosmology will be discussed.