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SUMMARY:Understanding non-Hermitian systems: statics and dynamics
DTSTART:20251007T090000Z
DTEND:20251007T100000Z
DTSTAMP:20260615T172200Z
UID:indico-event-18096@indico.psi.ch
CONTACT:markus.mueller@psi.ch
DESCRIPTION:Speakers: Awadhesh Narayan (Indian Institute of Science\, Beng
 aluru)\n\nNon-Hermitian systems have attracted significant attention in th
 e past few years. They feature a number of unique properties such as excep
 tional points and the skin effect. In this talk\, I will first present a f
 ramework to characterize exceptional points using Newton polygons and trop
 ical geometry [1\,2]. I will show simple examples to illustrate this frame
 work. In the second part\, I will present our recent results on the dynami
 cal interplay between the non-Hermitian skin effect and topological edge s
 tates [3]. Using the Lindbladian approach\, I will illustrate how open qua
 ntum systems are impacted by the combined presence of spectral and band to
 pologies.\n[1] R. Jaiswal\, A. Banerjee\, and A. Narayan\, New J. Phys. 25
 \, 033014 (2023).\n[2] A. Banerjee\, R. Jaiswal\, M. Manjunath\, and A. Na
 rayan\, Proc. Natl. Acad. Sci. U.S.A. 120\, e2302572120 (2023).\n[3] R. Sa
 rkar\, S. S. Hegde\, A. Narayan\, and T. Meng\, arXiv:2503.07193.\n\nhttps
 ://indico.psi.ch/event/18096/
LOCATION:WHGA/121
URL:https://indico.psi.ch/event/18096/
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