Characterizing topological excitations of a long-range Heisenberg model with trapped ions

Stefan Birnkammer, Annabelle Bohrdt, Fabian Grusdt, Michael Knap

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

14 Zitate (Scopus)

Abstract

Realizing and characterizing interacting topological phases in synthetic quantum systems is a formidable challenge. Here, we propose a Floquet protocol to realize the antiferromagnetic Heisenberg model with power-law decaying interactions. Based on analytical and numerical arguments, we show that this model features a quantum phase transition from a liquid to a valence bond solid that spontaneously breaks lattice translational symmetry and is reminiscent of the Majumdar-Ghosh state. The different phases can be probed dynamically by measuring the evolution of a fully dimerized state. We moreover introduce an interferometric protocol to characterize the topological excitations and the bulk topological invariants of the interacting many-body system.

OriginalspracheEnglisch
AufsatznummerL241103
FachzeitschriftPhysical Review B
Jahrgang105
Ausgabenummer24
DOIs
PublikationsstatusVeröffentlicht - 15 Juni 2022

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