Topologically protected localised states in spin chains

We consider spin chain families inspired by the Su, Schrieffer and Hegger (SSH) model. We demonstrate explicitly the topologically induced spatial localisation of quantum states in our systems. We present detailed investigations of the effects of random noise, showing that these topologically protec...

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Bibliographic Details
Published in:Scientific reports 2017-02, Vol.7 (1), p.42904-42904, Article 42904
Main Authors: Estarellas, Marta P., D’Amico, Irene, Spiller, Timothy P.
Format: Article
Language:English
Subjects:
639/766/259
639/766/483/481
Humanities and Social Sciences
multidisciplinary
Noise
Quantum theory
Science
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Summary:We consider spin chain families inspired by the Su, Schrieffer and Hegger (SSH) model. We demonstrate explicitly the topologically induced spatial localisation of quantum states in our systems. We present detailed investigations of the effects of random noise, showing that these topologically protected states are very robust against this type of perturbation. Systems with such topological robustness are clearly good candidates for quantum information tasks and we discuss some potential applications. Thus, we present interesting spin chain models which show promising applications for quantum devices.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep42904