<< November 2015 >>
 
 >>
 >>
 >>
 >>
 >>
Sun Mon Tue Wed Thu Fri Sat
 1   2   3   4   5   6   7 
 8   9   10   11   12   13   14 
 15   16   17   18   19   20   21 
 22   23   24   25   26   27   28 
 29   30   
 
Add an Event Edit This Event

Events at Physics

<< Summer 2015 Fall 2015 Spring 2016 >>
Subscribe to receive email announcements of events
Theory Seminar (High Energy/Cosmology)
Effective field theory for spacetime symmetry breaking
Date: Tuesday, November 3rd
Time: 3:30 pm
Place: 5280 Chamberlin Hall
Speaker: Toshifumi Noumi, Hong Kong University of Science and Technology
Abstract: Spacetime symmetry breaking often appears in condensed matter physics and cosmology. In contrast to the internal symmetry case, it is known that the number of broken global spacetime symmetries does not coincide with that of physical Nambu-Goldstone (NG) fields in general. Correspondingly, the coset construction of effective action has to be implemented with the so-called inverse Higgs constraints to compensate such a mismatch. In this talk, I revisit the effective action construction for spacetime symmetry breaking from the local symmetry point of view. Since NG fields are generated by local transformations of order parameters, such a local picture provides a correct identification of physical NG fields. I will illustrate the importance of the local picture and revisit the coset construction. I will also discuss applications to condensed matter physics and cosmology.
Host: Gary Shiu
Add this event to your calendar

©2013 Board of Regents of the University of Wisconsin System