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Topologically protected localised states in spin chains

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JournalScientific Reports
DateSubmitted - 21 Jul 2016
DateAccepted/In press - 17 Jan 2017
DatePublished (current) - 22 Feb 2017
Number of pages10
Pages (from-to)1-10
Original languageEnglish

Abstract

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.

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© The Author(s) 2017

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