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SUMMARY:Condensed Matter Seminar (News & Views series): Quantum transport 
 in disordered Chern insulators
DTSTART;VALUE=DATE-TIME:20260903T090000Z
DTEND;VALUE=DATE-TIME:20260903T100000Z
DTSTAMP;VALUE=DATE-TIME:20260803T235810Z
UID:indico-event-11485@ictp.it
DESCRIPTION:\n	Benoit Douçot\n	(LPTHE\, CNRS and Sorbonne University)\n\n
 	 \n	Abstract:\n	Recent experiments [1] imaging the non-equilibrium curre
 nt pattern in disordered Chern insulators have shown that most of the Hall
  current happens to flow inside the bulk of the spectrum\, and not on narr
 ow edge channels\, contrary to the most common expectation.\n	I will discu
 ss the role of various ingredients that shape the electrostatic potential 
 and current profiles across such Hall bar systems\, including Coulomb inte
 ractions\, dissipation\, smooth external potentials\, and disorder. I will
  argue that the latter two are the most important in the recent experiment
 s reported in [1]. In collaboration with D. Kovrizhin and R. Moessner\, we
  have found that they can induce wide meandering conduction channels\, tha
 t carry the quantized Hall current within the bulk of the system [2].[1] G
 . M. Ferguson et al\, Nature materials 22\, 1100 (2023)[2] B. Doucot\, D. 
 Kovrizhin\, R. Moessner\, PNAS 121\, No. 39 (2024)\n\n	Zoom registration l
 ink:https://zoom.us/meeting/register/q5hnI3NOTTujBQRYE7iZtA\n	 \n\n//indi
 co.ictp.it/event/11485/
LOCATION:Euler Lecture Hall (Leonrado Building) and via Zoom
URL://indico.ictp.it/event/11485/
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