Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

TT: Fachverband Tiefe Temperaturen

TT 74: Topological Insulators

TT 74.2: Vortrag

Donnerstag, 21. März 2024, 15:15–15:30, H 3005

Topological Green’s function zeros — Steffen Bollmann¹, Chandan Setty², Urban Seifert³, and •Elio König¹ — ¹Max-Planck Institute for Solid State Research, 70569 Stuttgart, Germany — ²Department of Physics and Astronomy, Rice Center for Quantum Materials, Rice University, Houston, Texas 77005, USA — ³Kavli Institute for Theoretical Physics, University of California, Santa Barbara, CA 93106, USA

The interplay of topology and strong correlations manifests itself in a plethora of exotic phenomena. Specifically, topological bands of Green’s function zeros have recently attracted substantial interest. Here, we present an analytically tractable model displaying such topological bands of zeros in the fermionic Green’s function when the system is tuned to a topologically ordered phase. We further demonstrate the existence of "edge states" of zeros and discuss their experimental implications, in particular when proximitized to edge states of non-interacting topological insulators. If time permits, we will also discuss transport signatures.

Keywords: Topology; Fractionalization; Lattice Gauge Theory