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SUMMARY:JCMS: Charge ordering and topology in the interacting non-Hermitia
 n SSH model
DTSTART:20260504T083000Z
DTEND:20260504T093000Z
DTSTAMP:20260517T004700Z
UID:indico-event-9651@indico.fysik.su.se
DESCRIPTION:Speakers: Rodrigo Arouca (Brazilian Center for Research in Phy
 sics (CBPF))\n\nAbstract: In this talk\, I will discuss a recent work [1] 
 where we investigate a non-reciprocal version of the non-Hermitian Su-Schr
 ieffer-Heeger model with an extended Hubbard term. Using exact diagonaliza
 tion\, we compute both the charge structure factor and a topological marke
 r to establish its phase diagram for open and periodic boundary conditions
 . We show that the topological phase can be extended by interactions\, wha
 t does not happen for the Hermitian version of this model\, and we show th
 at the high order exceptional point helps stabilize the charge order phase
 . \n \n[1] Sebastião dos A. Sousa-Júnior\, Pedro B. Melo\, Rubem Monda
 ini\, Arnob Kumar Ghosh\, and Rodrigo Arouca\, in preparation. \n\nhttps:
 //indico.fysik.su.se/event/9651/
LOCATION:Albano 3: 6228 - Mega (22 seats) (Albano Building 3)
URL:https://indico.fysik.su.se/event/9651/
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