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ClassDSpectral Peak in Majorana Quantum Wires
Open accessAbstract
Proximity coupled spin-orbit quantum wires purportedly support midgap Majorana states at critical points. We show that, in the presence of disorder, these systems generate a second band center anomaly, which is of different physical origin but shares key characteristics with the Majorana state: it is narrow in width, insensitive to magnetic fields, carries unit spectral weight, and is rigidly tied to the band center. Depending on the parity of the number of subgap quasiparticle states, a Majorana mode does or does not coexist with the impurity peak. The strong "entanglement" between the two phenomena may hinder an unambiguous detection of the Majorana by spectroscopic techniques.
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Cites
Teoria simmetrica dell’elettrone e del positrone
Majorana, E. (1937) · Il Nuovo Cimento · doi:10.1007/bf02961314 · Cited by 1,729
Cited by
Majorana zero modes and topological quantum computation
Sarma, S. D., Freedman, M., & Nayak, C. (2015) · npj Quantum Information · doi:10.1038/npjqi.2015.1 · Cited by 1,180
Majorana zero modes in superconductor–semiconductor heterostructures
Lutchyn, R. M., Bakkers, E. P. A. M., Kouwenhoven, L. P., Krogstrup, P., Marcus, C. M., & Oreg, Y. (2018) · Nature Reviews Materials · doi:10.1038/s41578-018-0003-1 · Cited by 992
Churchill, H. O. H., Fatemi, V., Grove-Rasmussen, K., Deng, M. T., Caroff, P., Xu, H. Q., & Marcus, C. M. (2013) · Physical Review B · doi:10.1103/physrevb.87.241401 · Cited by 771
Xu, J.-P., Wang, M.-X., Liu, Z. L., Ge, J.-F., Yang, X., Liu, C., Xu, Z. A., Guan, D., Gao, C. L., Qian, D., et al. (2015) · Physical Review Letters · doi:10.1103/physrevlett.114.017001 · Cited by 587
Topological Superconductivity and Majorana Fermions in RKKY Systems
Klinovaja, J., Stano, P., Yazdani, A., & Loss, D. (2013) · Physical Review Letters · doi:10.1103/physrevlett.111.186805 · Cited by 522
Metadata
- Authors
- Bagrets, D., & Altland, A.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2012-11-29
- Volume
- 109
- Issue
- 22
- Pages
- 227005-227005
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2094158956
- Cited by
- 282
- References
- 1
- FWCI
- 15.78
- Type
- journal article
- Language
- en
- Open access
- green
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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