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DTSTART:20200329T030000
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DTSTART:20191027T020000
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DTSTAMP:20260403T220404Z
UID:5dd64b333479e352615553@ist.ac.at
DTSTART:20200117T110000
DTEND:20200117T120000
DESCRIPTION:Speaker: Zlatko Papic\nhosted by Maksym Serbyn\nAbstract: Topol
 ogical quantum matter is believed to be host to an exotic type of particle
  called anyon. Unlike ordinary fermions and bosons\, anyons may obey non-A
 belian statistics-- a property that could help realize fault tolerant quan
 tum computation. Non-Abelian anyons have long been predicted to occur in t
 he fractional quantum Hall (FQH) phases that form in two-dimensional elect
 ron gases in the presence of a large magnetic field. However\, direct expe
 rimental evidence of anyons has remained elusive. In this talk I will pres
 ent our proposal for experimentally visualizing the structure of interacti
 ng electronic states using the scanning tunneling microscope (STM). This m
 ethod is capable of detecting the unique signatures of anyons\, and it is 
 particularly well-suited to semiconducting transition-metal dichalcogenide
 s\, a new class of 2D electron systems whose atomically thin structure -- 
 just like graphene -- facilitates gate-tunability. I will review the recen
 t observation of FQH states in one such material WSe2\, including an even-
 denominator FQH state that is expected to host non-Abelian anyons.These re
 sults suggest that van der Waals materials could provide a versatile exper
 imental platform that may enable to directly detect -- and perhaps ultimat
 ely manipulate-- the exotic anyon particles.
LOCATION:Heinzel Seminar Room / Office Bldg West (I21.EG.101)\, ISTA
ORGANIZER:cpetz@ist.ac.at
SUMMARY:Zlatko Papic: Topological quantum matter in van der Waals materials
 : non-Abelian excitations and new experimental probes
URL:https://talks-calendar.ista.ac.at/events/2420
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