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Spatial Rabi oscillations between Majorana bound states and quantum dots
Background: A Majorana bound state is a superconducting quasiparticle that is the superposition of particle and hole with equal amplitude. We propose a verification of this amplitude equality by analyzing the spatial Rabi oscillations of the quantum states of a quantum dot that is tunneling-coupled...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Beilstein-Institut
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6009355/ https://www.ncbi.nlm.nih.gov/pubmed/29977685 http://dx.doi.org/10.3762/bjnano.9.143 |
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author | Zheng, Jun-Hui Yao, Dao-Xin Wang, Zhi |
author_facet | Zheng, Jun-Hui Yao, Dao-Xin Wang, Zhi |
author_sort | Zheng, Jun-Hui |
collection | PubMed |
description | Background: A Majorana bound state is a superconducting quasiparticle that is the superposition of particle and hole with equal amplitude. We propose a verification of this amplitude equality by analyzing the spatial Rabi oscillations of the quantum states of a quantum dot that is tunneling-coupled to the Majorana bound states. Results: We find two resonant Rabi driving energies that correspond to the energy splitting due to the coupling of two spatially separated Majorana bound states. The resulting Rabi oscillating frequencies from these two different resonant driving energies are identical for the Majorana bound states, while different for ordinary Andreev bound states. We further study a double-quantum-dot setup and find a nonlocal quantum correlation between them that is mediated by two Majorana bound states. This nonlocal correlation has the signature of additional resonant driving energies. Conclusion: Our method can be used to distinguish between Majorana bound states and Andreev bound states. It also gives a precise measurement of the energy splitting between two Majorana bound states. |
format | Online Article Text |
id | pubmed-6009355 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Beilstein-Institut |
record_format | MEDLINE/PubMed |
spelling | pubmed-60093552018-07-05 Spatial Rabi oscillations between Majorana bound states and quantum dots Zheng, Jun-Hui Yao, Dao-Xin Wang, Zhi Beilstein J Nanotechnol Full Research Paper Background: A Majorana bound state is a superconducting quasiparticle that is the superposition of particle and hole with equal amplitude. We propose a verification of this amplitude equality by analyzing the spatial Rabi oscillations of the quantum states of a quantum dot that is tunneling-coupled to the Majorana bound states. Results: We find two resonant Rabi driving energies that correspond to the energy splitting due to the coupling of two spatially separated Majorana bound states. The resulting Rabi oscillating frequencies from these two different resonant driving energies are identical for the Majorana bound states, while different for ordinary Andreev bound states. We further study a double-quantum-dot setup and find a nonlocal quantum correlation between them that is mediated by two Majorana bound states. This nonlocal correlation has the signature of additional resonant driving energies. Conclusion: Our method can be used to distinguish between Majorana bound states and Andreev bound states. It also gives a precise measurement of the energy splitting between two Majorana bound states. Beilstein-Institut 2018-05-22 /pmc/articles/PMC6009355/ /pubmed/29977685 http://dx.doi.org/10.3762/bjnano.9.143 Text en Copyright © 2018, Zheng et al. https://creativecommons.org/licenses/by/4.0https://www.beilstein-journals.org/bjnano/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Nanotechnology terms and conditions: (https://www.beilstein-journals.org/bjnano/terms) |
spellingShingle | Full Research Paper Zheng, Jun-Hui Yao, Dao-Xin Wang, Zhi Spatial Rabi oscillations between Majorana bound states and quantum dots |
title | Spatial Rabi oscillations between Majorana bound states and quantum dots |
title_full | Spatial Rabi oscillations between Majorana bound states and quantum dots |
title_fullStr | Spatial Rabi oscillations between Majorana bound states and quantum dots |
title_full_unstemmed | Spatial Rabi oscillations between Majorana bound states and quantum dots |
title_short | Spatial Rabi oscillations between Majorana bound states and quantum dots |
title_sort | spatial rabi oscillations between majorana bound states and quantum dots |
topic | Full Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6009355/ https://www.ncbi.nlm.nih.gov/pubmed/29977685 http://dx.doi.org/10.3762/bjnano.9.143 |
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