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Condensed Matter Journal Club: "Entanglement spectrum in non-Hermitian systems"

Event Type
Seminar/Symposium
Sponsor
Condensed Matter Journal Club
Location
Loomis 464
Date
Feb 14, 2024   2:00 pm  
Speaker
Amanda Gatto Lamas (UIUC)
Contact
Jacopo Gliozzi
E-Mail
jglioz2@illinois.edu
Views
20
Originating Calendar
Physics - Condensed Matter Journal Club
The entanglement spectrum (ES) encodes the topological properties of a system due to the bulk-boundary correspondence. However, in non-Hermitian systems, the bulk-boundary correspondence is in general broken. This raises the question of whether you can still learn anything about the topology of a non-Hermitian system through the entanglement spectrum. In this talk, I will review the definition and importance of the ES for Hermitian systems, explain how it is generalized to the non-Hermitian case, and use the example of the non-Hermitian SSH chain to explore what topological properties are inherited by the ES in different phases. Mostly based on the paper: Ortega-Taberner, C., Rødland, L., & Hermanns, M. (2022). Polarization and entanglement spectrum in non-Hermitian systems. PRB, 105(7). arXiv:2111.07788 
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