Universität zu Köln

Haller, Andreas, Massignan, Pietro and Rizzi, Matteo ORCID: 0000-0002-8283-1005 (2020). Detecting topology through dynamics in interacting fermionic wires. Phys. Rev. Res., 2 (3). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2643-1564

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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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Haller, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED Massignan, Pietro UNSPECIFIED UNSPECIFIED UNSPECIFIED Rizzi, Matteo UNSPECIFIED orcid.org/0000-0002-8283-1005 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-323853
DOI:	10.1103/PhysRevResearch.2.033200
Journal or Publication Title:	Phys. Rev. Res.
Volume:	2
Number:	3
Date:	2020
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2643-1564
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Physics > Institute for Theoretical Physics
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language PHASES Multiple languages Physics, Multidisciplinary Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/32385