String Theory Seminars
Thermal equivariance and its applications (Tata-Infosys Lecture Series)
by Prof. Mukund Rangamani (University of California, Davis)
Tuesday, December 5, 2017 from to (Asia/Kolkata)
I will describe how techniques from topological field theory and equivariant cohomology find a role in physical problems. I will define the notion of thermal equivariance which will involve gauging thermal diffeomorphisms, and argue that these constructions naturally lead to entropy being interpretable as a Noether current. I will outline an application to constructing dissipative hydrodynamic effective actions, reproducing previously known facts about the admissible constitutive relations.