Strongly Interacting Majorana Fermions Seminar - Dmitry Pikulin

Event Date: 

Tuesday, October 27, 2015 -
2:30pm to 4:00pm

Event Location: 

  • 2250 Elings Hall

Event Price: 

Free

Event Contact: 

Sean Fraer

Email: seanfr@microsoft.com

Phone: 805-893-8818

  • Q Seminar

I discuss engineering strongly interacting phases of Majorana fermions on the surface of a topological insulator in contact with an s-wave superconductor. I claim that tuning a single parameter, surface chemical potential, one tunes between weakly- and strongly-interacting regimes. In particular, for the chemical potential tuned to the Dirac point of the surface the symmetry class BDI is realized. This setup opens possibilities to study a multitude of interacting Majorana models. In particular, I suggest 0d model to experimentally test the Fidkowski-Kitaev Z8 periodicity, 1d and 2d exactly solvable models, 2d model analyzed by exact diagonalization, and one and higher-dimensional interaction-enabled phases.