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A Tale of Two Majoranas
September 13, 20194:00 pm – 5:00 pm (CDT)

A Tale of Two Majoranas


Fan Zhang (University of Texas, Dallas)


Ar. Abanov



Mitchell Institute for Fundamental Physics & Astronomy

College Station, Texas 77843

Event Details

We are witnessing and participating the grand discovery of various topological states of matter. In this talk, I will introduce time-reversal-invariant topological superconductivity and its several ongoing experimental realizations. Uniquely, each 0D boundary of such a topological superconductor hosts one Majorana Kramers pair, producing tabletop supersymmetry, quantized tunneling conductance, and fractional Josephson effects beyond Kitaev's classification. I will then highlight the tantalizing roles played by the many-body interactions in such a platform. One prime example is the emergence of quadruple periodicity and fractionalized parafermions in a Josephson effect. Another paradigmatic setup is a weakly probed floating topological superconductor, in which a two-channel Kondo ground state becomes stabilized without fine tuning.

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