BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Gil Young Cho\, Advanced Institute of Science and Technology\, Korea\n\n
Fathoming interplay between symmetry and topology of many-elec tron wave-functions has deepened understanding of quantum many body system s\, especially after the discovery of topological insulators. Topology of electron wave-functions enforces and protects emergent gapless excitations \, and symmetry is intrinsically tied to the topological protection in a c ertain class. Namely\, unless the symmetry is broken\, the topological nat ure is intact. We show novel interplay phenomena between symmetry and topo logy in topological phase transitions associated with line-nodal supercond uctors. The interplay may induce an exotic universality class in sharp con trast to that of the phenomenological Landau-Ginzburg theory. Hyper-scalin g violation and emergent relativistic scaling are main characteristics\, a nd the interplay even induces unusually large quantum critical region. We propose characteristic experimental signatures around the phase transition s in three spatial dimensions\, for example\, a linear phase boundary in a temperature-tuning parameter phase-diagram.
\n DTSTART:20160908T150000Z LOCATION:Physics Building\, Room 313 SUMMARY:Topological Phase Transitions in Line-nodal Superconductors END:VEVENT END:VCALENDAR