Cargando…
Generation of steady entanglement via unilateral qubit driving in bad cavities
We propose a scheme for generating an entangled state for two atoms trapped in two separate cavities coupled to each other. The scheme is based on the competition between the unitary dynamics induced by the classical fields and the collective decays induced by the dissipation of two non-local bosoni...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5732200/ https://www.ncbi.nlm.nih.gov/pubmed/29247250 http://dx.doi.org/10.1038/s41598-017-17933-7 |
_version_ | 1783286639831810048 |
---|---|
author | Jin, Zhao Su, Shi-Lei Zhu, Ai-Dong Wang, Hong-Fu Shen, Li-Tuo Zhang, Shou |
author_facet | Jin, Zhao Su, Shi-Lei Zhu, Ai-Dong Wang, Hong-Fu Shen, Li-Tuo Zhang, Shou |
author_sort | Jin, Zhao |
collection | PubMed |
description | We propose a scheme for generating an entangled state for two atoms trapped in two separate cavities coupled to each other. The scheme is based on the competition between the unitary dynamics induced by the classical fields and the collective decays induced by the dissipation of two non-local bosonic modes. In this scheme, only one qubit is driven by external classical fields, whereas the other need not be manipulated via classical driving. This is meaningful for experimental implementation between separate nodes of a quantum network. The steady entanglement can be obtained regardless of the initial state, and the robustness of the scheme against parameter fluctuations is numerically demonstrated. We also give an analytical derivation of the stationary fidelity to enable a discussion of the validity of this regime. Furthermore, based on the dissipative entanglement preparation scheme, we construct a quantum state transfer setup with multiple nodes as a practical application. |
format | Online Article Text |
id | pubmed-5732200 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-57322002017-12-21 Generation of steady entanglement via unilateral qubit driving in bad cavities Jin, Zhao Su, Shi-Lei Zhu, Ai-Dong Wang, Hong-Fu Shen, Li-Tuo Zhang, Shou Sci Rep Article We propose a scheme for generating an entangled state for two atoms trapped in two separate cavities coupled to each other. The scheme is based on the competition between the unitary dynamics induced by the classical fields and the collective decays induced by the dissipation of two non-local bosonic modes. In this scheme, only one qubit is driven by external classical fields, whereas the other need not be manipulated via classical driving. This is meaningful for experimental implementation between separate nodes of a quantum network. The steady entanglement can be obtained regardless of the initial state, and the robustness of the scheme against parameter fluctuations is numerically demonstrated. We also give an analytical derivation of the stationary fidelity to enable a discussion of the validity of this regime. Furthermore, based on the dissipative entanglement preparation scheme, we construct a quantum state transfer setup with multiple nodes as a practical application. Nature Publishing Group UK 2017-12-15 /pmc/articles/PMC5732200/ /pubmed/29247250 http://dx.doi.org/10.1038/s41598-017-17933-7 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Jin, Zhao Su, Shi-Lei Zhu, Ai-Dong Wang, Hong-Fu Shen, Li-Tuo Zhang, Shou Generation of steady entanglement via unilateral qubit driving in bad cavities |
title | Generation of steady entanglement via unilateral qubit driving in bad cavities |
title_full | Generation of steady entanglement via unilateral qubit driving in bad cavities |
title_fullStr | Generation of steady entanglement via unilateral qubit driving in bad cavities |
title_full_unstemmed | Generation of steady entanglement via unilateral qubit driving in bad cavities |
title_short | Generation of steady entanglement via unilateral qubit driving in bad cavities |
title_sort | generation of steady entanglement via unilateral qubit driving in bad cavities |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5732200/ https://www.ncbi.nlm.nih.gov/pubmed/29247250 http://dx.doi.org/10.1038/s41598-017-17933-7 |
work_keys_str_mv | AT jinzhao generationofsteadyentanglementviaunilateralqubitdrivinginbadcavities AT sushilei generationofsteadyentanglementviaunilateralqubitdrivinginbadcavities AT zhuaidong generationofsteadyentanglementviaunilateralqubitdrivinginbadcavities AT wanghongfu generationofsteadyentanglementviaunilateralqubitdrivinginbadcavities AT shenlituo generationofsteadyentanglementviaunilateralqubitdrivinginbadcavities AT zhangshou generationofsteadyentanglementviaunilateralqubitdrivinginbadcavities |