Physics Library, Room 223A, Physics Building
The MU Physics & Astronomy Department's O. M. Stewart Colloquium Series presents, "Topological Superconductivity from Repulsive Interactions," Thursday, Feb. 15, 4:00 p.m. in the Physics Building library. Refreshments will be served beginning at 3:45 p.m.
Postdoctoral Research Associate Yuxuan Wang, University of Illinois, writes, "Topological superconductors exhibit exotic Majorana modes at the boundaries and vortices, which provide important future applications in quantum computing. In addition to usual path of "engineering" topological superconductivity with heterostructure of conventional superconductors, we show that intrinsically unconventional topological superconductivity can also be naturally realized through electron-electron interactions. Specifically, we analyze the topological superconducting state that emerges in the vicinity of an inversion-breaking electronic order. Other than topological superconductivity, we show that the system has a rich phase diagram with novel gapless topological phases and symmetry breaking phases. We address the relevance of our results with recent experiments in Cd2Ce2O7 and half-Heusler superconductors. Finally, we argue that important progress can be made at the intersection of topological phase of matter and unconventional superconductivity."