The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier
The tripartite entanglement generated from a cascaded parametric amplifier is always present in the whole gain region in the ideal condition. However, in practical applications, the quantum entanglement is very fragile and easily deteriorated by quantum noise from interactions with external environm...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/3/307 |
| _version_ | 1797609455769092096 |
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| author | Hailong Wang Yajuan Zhang Xiong Zhang Jun Chen Huaping Gong Chunliu Zhao |
| author_facet | Hailong Wang Yajuan Zhang Xiong Zhang Jun Chen Huaping Gong Chunliu Zhao |
| author_sort | Hailong Wang |
| collection | DOAJ |
| description | The tripartite entanglement generated from a cascaded parametric amplifier is always present in the whole gain region in the ideal condition. However, in practical applications, the quantum entanglement is very fragile and easily deteriorated by quantum noise from interactions with external environments, e.g., the avoidable attenuation and amplification operations may lead to some degradation effects on the quantum entanglement. Therefore, in this work, bipartite entanglement for the three pairs and tripartite entanglement in this cascaded parametric amplifier under the circumstances of attenuation and amplification operations are analyzed by using positivity under partial transposition criterion. The results show that tripartite entanglement is robust to the deterioration effects from the attenuation and amplification operations rather than bipartite entanglement. Our results may find some practical applications of multipartite quantum entanglement in quantum secure communications. |
| first_indexed | 2024-03-11T06:01:36Z |
| format | Article |
| id | doaj.art-c7009f496d6b4c5f892a402f797c6346 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-11T06:01:36Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-c7009f496d6b4c5f892a402f797c63462023-11-17T13:19:12ZengMDPI AGPhotonics2304-67322023-03-0110330710.3390/photonics10030307The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric AmplifierHailong Wang0Yajuan Zhang1Xiong Zhang2Jun Chen3Huaping Gong4Chunliu Zhao5College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaNMPA Key Laboratory for Biomedical Optics, Zhejiang Institute of Medical Device Supervision and Testing, Hangzhou 310018, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaCollege of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, ChinaThe tripartite entanglement generated from a cascaded parametric amplifier is always present in the whole gain region in the ideal condition. However, in practical applications, the quantum entanglement is very fragile and easily deteriorated by quantum noise from interactions with external environments, e.g., the avoidable attenuation and amplification operations may lead to some degradation effects on the quantum entanglement. Therefore, in this work, bipartite entanglement for the three pairs and tripartite entanglement in this cascaded parametric amplifier under the circumstances of attenuation and amplification operations are analyzed by using positivity under partial transposition criterion. The results show that tripartite entanglement is robust to the deterioration effects from the attenuation and amplification operations rather than bipartite entanglement. Our results may find some practical applications of multipartite quantum entanglement in quantum secure communications.https://www.mdpi.com/2304-6732/10/3/307quantum noisebipartite entanglementtripartite entanglementcascaded parametric amplifier |
| spellingShingle | Hailong Wang Yajuan Zhang Xiong Zhang Jun Chen Huaping Gong Chunliu Zhao The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier Photonics quantum noise bipartite entanglement tripartite entanglement cascaded parametric amplifier |
| title | The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier |
| title_full | The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier |
| title_fullStr | The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier |
| title_full_unstemmed | The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier |
| title_short | The Effect of Quantum Noise on Multipartite Entanglement from a Cascaded Parametric Amplifier |
| title_sort | effect of quantum noise on multipartite entanglement from a cascaded parametric amplifier |
| topic | quantum noise bipartite entanglement tripartite entanglement cascaded parametric amplifier |
| url | https://www.mdpi.com/2304-6732/10/3/307 |
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