Majorana zero modes in the hopping-modulated one-dimensional p-wave superconducting model

Majorana zero modes in the hopping-modulated one-dimensional p-wave superconducting model

We investigate the one-dimensional p -wave superconducting model with periodically modulated hopping and show that under time-reversal symmetry, the number of the Majorana zero modes (MZMs) strongly depends on the modulation period. If the modulation period is odd, there can be at most one MZM. Howe...

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Veröffentlicht in:Scientific reports 2015-11, Vol.5 (1), p.17049-17049, Article 17049
Hauptverfasser: Gao, Yi, Zhou, Tao, Huang, Huaixiang, Huang, Ran
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Zhou, Tao
Huang, Huaixiang
Huang, Ran
description We investigate the one-dimensional p -wave superconducting model with periodically modulated hopping and show that under time-reversal symmetry, the number of the Majorana zero modes (MZMs) strongly depends on the modulation period. If the modulation period is odd, there can be at most one MZM. However if the period is even, the number of the MZMs can be zero, one and two. In addition, the MZMs will disappear as the chemical potential varies. We derive the condition for the existence of the MZMs and show that the topological properties in this model are dramatically different from the one with periodically modulated potential.
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subjects 639/766/119/1003
639/766/483/2802
Chemical potential
Humanities and Social Sciences
multidisciplinary
Physics
Science
Symmetry
title Majorana zero modes in the hopping-modulated one-dimensional p-wave superconducting model
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