Disorder-induced topological phase transition in a one-dimensional mechanical system

We numerically investigate the topological phase transition induced purely by disorder in a spring-mass chain. We employ two types of disorders—chiral and random types—to explore the interplay between topology and disorder. By tracking the evolution of real-space topological invariants, we obtain th...

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Main Authors: Xiaotian Shi, Ioannis Kiorpelidis, Rajesh Chaunsali, Vassos Achilleos, Georgios Theocharis, Jinkyu Yang
Format: Article
Language:English
Published: American Physical Society 2021-07-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.3.033012
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author Xiaotian Shi
Ioannis Kiorpelidis
Rajesh Chaunsali
Vassos Achilleos
Georgios Theocharis
Jinkyu Yang
author_facet Xiaotian Shi
Ioannis Kiorpelidis
Rajesh Chaunsali
Vassos Achilleos
Georgios Theocharis
Jinkyu Yang
author_sort Xiaotian Shi
collection DOAJ
description We numerically investigate the topological phase transition induced purely by disorder in a spring-mass chain. We employ two types of disorders—chiral and random types—to explore the interplay between topology and disorder. By tracking the evolution of real-space topological invariants, we obtain the topological phase diagrams and demonstrate the bilateral capacity of disorder to drive topological transitions, from topologically nontrivial to trivial and vice versa. The corresponding transition is accompanied by the realization of a mechanical topological Anderson insulator. The findings from this study hint that the combination of disorder and topology can serve as an efficient control knob to manipulate the transfer of mechanical energy.
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spelling doaj.art-0c76a74b71f64cc38b621f08898b8fe02024-04-12T17:11:21ZengAmerican Physical SocietyPhysical Review Research2643-15642021-07-013303301210.1103/PhysRevResearch.3.033012Disorder-induced topological phase transition in a one-dimensional mechanical systemXiaotian ShiIoannis KiorpelidisRajesh ChaunsaliVassos AchilleosGeorgios TheocharisJinkyu YangWe numerically investigate the topological phase transition induced purely by disorder in a spring-mass chain. We employ two types of disorders—chiral and random types—to explore the interplay between topology and disorder. By tracking the evolution of real-space topological invariants, we obtain the topological phase diagrams and demonstrate the bilateral capacity of disorder to drive topological transitions, from topologically nontrivial to trivial and vice versa. The corresponding transition is accompanied by the realization of a mechanical topological Anderson insulator. The findings from this study hint that the combination of disorder and topology can serve as an efficient control knob to manipulate the transfer of mechanical energy.http://doi.org/10.1103/PhysRevResearch.3.033012
spellingShingle Xiaotian Shi
Ioannis Kiorpelidis
Rajesh Chaunsali
Vassos Achilleos
Georgios Theocharis
Jinkyu Yang
Disorder-induced topological phase transition in a one-dimensional mechanical system
Physical Review Research
title Disorder-induced topological phase transition in a one-dimensional mechanical system
title_full Disorder-induced topological phase transition in a one-dimensional mechanical system
title_fullStr Disorder-induced topological phase transition in a one-dimensional mechanical system
title_full_unstemmed Disorder-induced topological phase transition in a one-dimensional mechanical system
title_short Disorder-induced topological phase transition in a one-dimensional mechanical system
title_sort disorder induced topological phase transition in a one dimensional mechanical system
url http://doi.org/10.1103/PhysRevResearch.3.033012
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AT ioanniskiorpelidis disorderinducedtopologicalphasetransitioninaonedimensionalmechanicalsystem
AT rajeshchaunsali disorderinducedtopologicalphasetransitioninaonedimensionalmechanicalsystem
AT vassosachilleos disorderinducedtopologicalphasetransitioninaonedimensionalmechanicalsystem
AT georgiostheocharis disorderinducedtopologicalphasetransitioninaonedimensionalmechanicalsystem
AT jinkyuyang disorderinducedtopologicalphasetransitioninaonedimensionalmechanicalsystem