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Topological Quantum Computing Quantum Simulation Entanglement Theory Quantum Correlations

Topological entanglement entropy of interacting disordered zigzag graphene ribbons

arXiv
Authors: Young Heon Kim, Hye Jeong Lee, S. -R. Eric Yang

Year

2020

Paper ID

18943

Status

Preprint

Abstract Read

~2 min

Abstract Words

70

Citations

N/A

Abstract

Interacting disordered zigzag graphene nanoribbons have fractional charges, are quasi-one-dimensional, and display an exponentially small gap. Our numerical computations showed that the topological entanglement entropy of these systems has a small finite but universal value, independent of the strength of the interaction and the disorder. The result that was obtained for the topological entanglement entropy shows that the disorder-free phase is critical and becomes unstable in the presence of disorder.

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  • This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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  • Interacting disordered zigzag graphene nanoribbons have fractional charges, are quasi-one-dimensional, and display an exponentially small gap.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2011.13720 [2] arXiv https://arxiv.org/abs/2011.13720 [3] Publisher https://arxiv.org/abs/2011.13720

Local Citation Graph (Related-Paper Links)

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