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arXiv · 1011.1007

Counting Majorana zero modes in superconductors

Luiz Santos·Yusuke Nishida·Claudio Chamon·Christopher Mudry
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Abstract

A counting formula for computing the number of (Majorana) zero modes bound to topological point defects is evaluated in a gradient expansion for systems with charge-conjugation symmetry. This semi-classical counting of zero modes is applied to some examples that include graphene and a chiral p-wave superconductor in two-dimensional space. In all cases, we explicitly relate the counting of zero modes to Chern numbers.

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Luiz Santos, Yusuke Nishida, Claudio Chamon, Christopher Mudry. 2011-04-07. Counting Majorana zero modes in superconductors. https://doi.org/10.1103/physrevb.83.104522

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