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SUMMARY:Majorana fermions in a quantum spin Hall insulator
DTSTART:20140224T161500
DTEND:20140224T171500
DTSTAMP:20260427T225530Z
UID:c99f4adb3a884b8e0237630131b56bf95d0fb7700890252ff5867beb
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Carlo Beenakker\, Instituut Lorentz\, Leiden University\
 , Netherlands\nTopological insulators in proximity to a superconductor hav
 e been predicted to support Majorana zero-modes: midgap states with identi
 cal creation and annihilation operators and non-Abelian braiding statistic
 s\, that are presently under intense scrutiny. The conducting edge of a qu
 antum spin Hall insulator (a quantum well with an inverted band gap)seems 
 like an ideal system to search for these elusive particles in a transport 
 experiment: Only a single mode propagates in each direction along the edge
 \, unaffected by disorder since backscattering of these helical modes is f
 orbidden by time-reversal symmetry. We discuss the prospects for the detec
 tion of Majoranas as a short-term application\, and braiding as a longer t
 erm perspective.
LOCATION:Room CE 1 http://plan.epfl.ch/?zoom=20&recenter_y=5864182.50561&r
 ecenter_x=731299.44535&layerNodes=fonds\,batiments\,labels\,information\,p
 arkings_publics\,arrets_metro\,transports_publics&floor=1&q=ce1
STATUS:CONFIRMED
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