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DTSTART:20230326T030000
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DTSTAMP:20260425T193313Z
UID:63c91c89f3293904569390@ist.ac.at
DTSTART:20230203T110000
DTEND:20230203T120000
DESCRIPTION:Speaker: Alexander Mirlin\nhosted by Maksym Serbyn\nAbstract: G
 enerically\, edges of fractional quantum Hall (FQH) systems involve multip
 le modes. Furthermore\, for a majority of fractions\, there are counterpro
 pagating modes on the edge. In particular\, it was predicted that this is 
 always the case for filling fractions between 1/2 and 1\, including such p
 rominent FQH states as 2/3\, 3/5\, etc. In this talk\, I will review recen
 t theoretical and experimental progress on understanding transport propert
 ies of such complex edges. The observables of interest include\, in partic
 ular\, electrical and thermal conductances. Our theory predict distinct qu
 antized values for them (determined by the bulk topology) for coherent (no
 n-equilibrated) and equilibrated regimes. Another important observable is 
 electric shot noise. We show that noise is an effective tool to study the 
 thermal transport and the topology of the state. On the experimental side\
 , there are major advances in the last few years in engineering such syste
 ms and exploring their transport characteristics. Combination of experimen
 tal and theoretical progress paves the way for better understanding the to
 pology of FQH states\, including non-abelian states such as 5/2.
LOCATION:Heinzel Seminar Room / Office Bldg West (I21.EG.101)\, ISTA
ORGANIZER:cpetz@ist.ac.at
SUMMARY:Alexander Mirlin: Transport in fractional quantum Hall edges with c
 ounterpropagating modes
URL:https://talks-calendar.ista.ac.at/events/3948
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