Anyonics : designing exotic circuitry with non-abelian anyons
Vendredi 27 février 2015 11:00
- Duree : 1 heure
Lieu : Amphithéatre RDC, Maison des magistères, 25 rue des martyrs, 38000 Grenoble
Orateur : Kirill SHTENGEL (University of California, Riverside)
RÉSUMÉ
Non-Abelian anyons are widely sought for the exotic fundamental physics they harbour as well as for their possible applications for quantum information processing. Currently, there are numerous blueprints for stabilizing the simplest type of non-Abelian anyon, a Majorana zero energy mode bound to a vortex or a domain wall. One such candidate system, a so-called "Majorana wire" can be made by judiciously interfacing readily available materials ; the experimental evidence for the viability of this approach is presently emerging. Following this idea, we introduce a device fabricated from conventional fractional quantum Hall states, s-wave superconductors and insulators with strong spin-orbit coupling. Similarly to a Majorana wire, the ends of our “quantum wire” would bind "parafermions", exotic non-Abelian anyons which can be viewed as fractionalized Majorana zero modes.
I will briefly discuss their properties and describe how such parafermions can be used to construct new and potentially useful circuit elements which include current and voltage mirrors, transistors for fractional charge currents and "flux capacitors".
Un café sera servi à 10h40 dans la salle commune du LPMMC, au 1er étage.
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Contact : julia.meyer@ujf-grenoble.fr
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