Gauge theories in Condensed Matter Physics (Condensed Matter Lecture Series)
by Prof. Ashvin Vishwanath (Harvard University)
Wednesday, August 1, 2018 from to (Asia/Kolkata)
I will outline a few examples where gauge theories must be invoked to understand strongly interacting quantum many body systems despite there being no gage structure in their microscopic Hamiltonians. Examples include phase transitions between quantum hall states, competing orders in magnetic materials built from quantum spins and mass generation in Dirac fermion systems in the absence of symmetry breaking.