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“Emergent supersymmetry in condensed matter models
of interacting Majorana fermions"
Thursday, 23 April 2020
Video-Recording for any system with MP4-support
- Video.mp4 (ca.339 Mb)
17:15 – 18:15
(University of British Columbia)
It has been proposed that a superconductor in a magnetic
field, in proximity to a topological insulator, has a Majorana fermion at the core
of every vortex. I will discuss the phase diagram of this system with interactions
between the Majorana fermions included. In the (1+1) dimensional case the phase
diagram has been well confirmed by a combination of analytical and numerical
methods. It includes 3 non-trivial phases with emergent Lorentz invariance and
a critical point with Lorentz invariant supersymmetry.
I will then discuss our conjecture on the 2 dimensional square vortex lattice case,
which also includes emergent Lorentz invariance and supersymmetry
Bio: Ian Affleck is fellow of the British Royal Society, a foreign associate of the
French Academy of Sciences and a winner of the American Physical Society
Onsager Prize. He began his career in high energy theory, including cosmology,
but switched into condensed matter theory many years ago. He often applies
techniques from high energy theory to condensed matter physics.
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