Dr. Eun-Ah Kim
Stanford University

The theory of nodal nematic quantum criticality

The cuprates are captivating materials because they exhibit high transition temperature d-wave superconductivity. However, they are also intriguing as arenas to study other aspects of strong correlation effects, especially the physics of possible "competing orders" such as d-density wave, stripe, or nematic order and the nature of associated quantum phase transitions. In this talk, I will focus on the physics emerging at the quantum critical point for a putative nematic to isotropic quantum phase transition deep inside the superconducting dome. I will discuss the character of the critical point and the effect of critical fluctuations on the nodal (Dirac like) quasiparticles using a 1/N expansion.