Speaker
Mijanur Islam
(Post Doctorate fellow, University of Ottawa)
Description
Semiconductor–superconductor nanowires are intrinsically spinful and cannot, in general, be reduced to a single spinless Kitaev chain. We show that such systems are naturally described as two coupled $p$-wave (Kitaev-like) chains associated with different spin sectors. Using bond Fermion formulation and exact diagonalization, we analyze parity resolved spectra and local spectral functions, demonstrating that a zero-energy mode emerges only in one effective chain and is strongly localized at the system boundaries, while the bulk remains gapped. Inter-chain coupling lifts parity degeneracy and redistributes low-energy spectral weight, providing a controlled framework to assess the stability of Majorana like modes in finite spinful nanowires.
| Keyword-1 | Majorana Fermions |
|---|---|
| Keyword-2 | SM-SC quantum dots |
| Keyword-3 | Topology |
Authors
Dr
Daniel Miravet
Dr
Ibsal Assi
Mr
Mahan Mohseni
Mijanur Islam
(Post Doctorate fellow, University of Ottawa)
Prof.
Pawel Hawrylak