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SUMMARY:Biao Lian
DTSTART:20260311T150000Z
DTEND:20260311T160000Z
DTSTAMP:20260406T025900Z
UID:indico-event-790@indico.kcl.ac.uk
DESCRIPTION:Title: Quantized resistance from fractional quantum Hall edge 
 with superconductivity\n \nAbstract: \nIn recent years\, there has been
  growing experimental interests in studying quantum Hall edge states in pr
 oximity to a superconductor (SC)\; however\, a quantized resistance signat
 ure is usually lacking\, due to the non-universal superconducting coupling
 s and unavoidable disorders. We demonstrate that a novel quantized resista
 nce can be realized for certain fractional quantum Hall (FQH) edge states 
 with disordered SC proximity. The example I will show is the filling 2/3 F
 QH state\, which is known to have a pair of counter-propagating edge modes
 . We predict that disordered SC-couplings can reconstruct the edge modes i
 nto an infinite set of stable phases with quantized electron-to-hole conve
 rsion probability\, which gives rise to a quantized downstream resistance 
 in the FQH-SC junction. This provides a quantized electrical transport sig
 nature beyond the quantized Hall resistance. Our results reveal a rich lan
 dscape of disorder-stabilized phases in topological edge states with SC pr
 oximity.\n\nhttps://indico.kcl.ac.uk/event/790/
LOCATION:S7.06
URL:https://indico.kcl.ac.uk/event/790/
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