Journal Article

FZJ-2020-02788

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Detecting topology through dynamics in interacting fermionic wires

Haller, A. ; Massignan, P. (Corresponding author) ; Rizzi, M.FZJ*

2020
APS College Park, MD

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Please use a persistent id in citations: http://hdl.handle.net/2128/30730  doi:10.1103/PhysRevResearch.2.033200

Abstract: Probing the topological invariants of interacting systems stands as a grand and open challenge. Here we describe a dynamical method to characterize 1D chiral models, based on the direct observation of time-evolving bulk excitations. We present analytical and state-of-the-art numerical calculations on various flavors of interacting Su-Schrieffer-Heeger (SSH) chains, demonstrating how measuring the mean chiral displacement allows us to distinguish between topological insulator, trivial insulator, and symmetry-broken phases. Finally, we provide a readily-feasible experimental blueprint for a model displaying these three phases and we describe how to detect those

Keyword(s): Condensed Matter Physics (2nd)

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Contributing Institute(s):

1. Quantum Control (PGI-8)

Research Program(s):

1. 142 - Controlling Spin-Based Phenomena (POF3-142) (POF3-142)
2. 522 - Controlling Spin-Based Phenomena (POF3-522) (POF3-522)

Appears in the scientific report 2020

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