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Majorana Zero Modes in Fractional Vortices
Abstract
Majorana zero modes (MZMs) are promising for topological quantum computation, with vortices in topological superconductors serving as a leading platform. Recent experiments show that integer Abrikosov vortices in iron-based superconductors can split into fractional vortices (FVs) carrying fractional flux quanta. We show that due to topological protection, MZMs hosted by FVs are spatially unfolded over the FV cores, while fermionic bound states remain localized at individual FV cores. This yields zero-bias conductance peaks in both local tunneling and nonlocal crossed Andreev reflection, offering an alternative MZM signature.
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BibTeX
@misc{fang2026majorana,
title = {{Majorana Zero Modes in Fractional Vortices}},
author = {Lecheng Fang and Haotian Li and Haijiao Ji and Quanxin Hu and Hong Ding and Noah F. Q. Yuan},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.39942},
eprint = {2610.39942},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.39942},
}
RIS
TY - UNPB
TI - Majorana Zero Modes in Fractional Vortices
AU - Lecheng Fang
AU - Haotian Li
AU - Haijiao Ji
AU - Quanxin Hu
AU - Hong Ding
AU - Noah F. Q. Yuan
PY - 2026
DA - 2026/10/29
PB - arXiv
DO - 10.48550/arxiv.2610.39942
UR - https://arxiv.org/abs/2610.39942
AB - Majorana zero modes (MZMs) are promising for topological quantum computation, with vortices in topological superconductors serving as a leading platform. Recent experiments show that integer Abrikosov vortices in iron-based superconductors can split into fractional vortices (FVs) carrying fractional flux quanta. We show that due to topological protection, MZMs hosted by FVs are spatially unfolded over the FV cores, while fermionic bound states remain localized at individual FV cores. This yields zero-bias conductance peaks in both local tunneling and nonlocal crossed Andreev reflection, offering an alternative MZM signature.
ER -