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Supercurrent Reversal in Two-Dimensional Topological Insulators

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arxiv 1507.05089 v3 pith:P74TGTCM submitted 2015-07-17 cond-mat.mes-hall cond-mat.str-elcond-mat.supr-con

classification cond-mat.mes-hallcond-mat.str-elcond-mat.supr-con
keywords topologicalinsulatorsupercurrenttwo-dimensionalexternalfieldinsulatorsmagnetic
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We calculate supercurrent across a two-dimensional topological insulator subjected to an external magnetic field. When the edge states of a narrow two-dimensional topological insulator are hybridized, an external magnetic field can close the hybridization gap, thus driving a quantum phase transition from insulator to semimetal states of the topological insulator. We find a sign reversal of the supercurrent at the quantum phase transition revealing intrinsic properties of topological insulators via Josephson effect.

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Cited by 1 Pith paper

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  1. A Framework for the Bayesian Calibration of Complex and Data-Scarce Models in Applied Sciences

    stat.CO 2026-01 conditional novelty 4.0 of 10

    ACBICI is a new open-source Python library that implements Kennedy–O'Hagan Bayesian calibration with Gaussian-process surrogates, discrepancy terms, multi-output support, and diagnostics.

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