Quantum Cafe: Topological Superconductivity from Majorana to Fibonacci

  • Speaker
  • Charles Kane, Ph.D.Distinguished Professor of Physics, University of Pennsylvania
Date & Time


Flatiron Institute 162 Fifth Ave, 9th Floor Classroom
United States

Topological Superconductivity is a topic of current interest because of its potential for providing a method to reliably store and manipulate quantum information. The most basic topological superconductor has an underlying Ising topological order, in which zero energy Majorana quasiparticle states are associated with topological defects. We will review recent experimental progress towards realizing those states in one and two dimensional superconducting devices. Ising topological order is too simple to allow universal quantum computation, but the richer Fibonacci topological order is in principle sufficient. We will formulate a theory of a Fibonacci phase of a topological superconductor based on a solvable model of interacting Majorana fermions. This theory provides new insight into the nature of the Fibonacci phase, and predicts a closely related “anti-Fibonacci” phase. We show that Majorana fermions can split into a pair of Fibonacci anyons, and propose an interferometer that directly probes Fibonacci non-Abelian statistics.


Quantum Café is CCQ’s ongoing seminar series: open to all bona fide members of the greater NYC scientific community and held every second week, Quantum Café presents a series of informal, highly interactive talks, typically by external speakers, which present the most interesting recent developments and open questions in our field.


Upcoming Dates:

February 21, 2018

Speaker: TBD

March 14, 2018
Speaker: TBD

March 28, 2018
Speaker: TBD

April 11, 2018
Speaker: TBD

April 25, 2018
Speaker: TBD

May 6, 2018
Speaker: David Hsieh, California Institute of Technology

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