Remote entanglement generation via enhanced quantum state transfer
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arXiv
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| Autori principali: | , , , , , , , , , , , , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912418242756608 |
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| author | Wang, Tian-Le Wang, Peng Zhao, Ze-An Zhang, Sheng Zhao, Ren-Ze Yang, Xiao-Yan Zhang, Hai-Feng Li, Zhi-Fei Wu, Yuan Guo, Liang-Liang Chen, Yong Tao, Hao-Ran Du, Lei Zhang, Chi Jia, Zhi-Long Kong, Wei-Cheng Duan, Peng Gong, Ming Guo, Guo-Ping |
| author_facet | Wang, Tian-Le Wang, Peng Zhao, Ze-An Zhang, Sheng Zhao, Ren-Ze Yang, Xiao-Yan Zhang, Hai-Feng Li, Zhi-Fei Wu, Yuan Guo, Liang-Liang Chen, Yong Tao, Hao-Ran Du, Lei Zhang, Chi Jia, Zhi-Long Kong, Wei-Cheng Duan, Peng Gong, Ming Guo, Guo-Ping |
| contents | Achieving robust and scalable remote quantum entanglement is a fundamental challenge for the development of distributed quantum networks and modular quantum computing systems. Along this, perfect state transfer (PST) and fractional state transfer (FST) have emerged as promising schemes for quantum state transfer and remote entanglement generation using only nearest-neighbor couplings. However, the current implementations suffer from quantum loss and limited parameter tunability. In this work, we propose a new quantum state transfer scheme based on a zig-zag configuration, which introduces a controlling parameter for PST and FST. We show that this new parameter can suppress the population in the intermediate qubits, thereby reducing losses. We experimentally demonstrate the dynamics of different configurations on a superconducting quantum processor, achieving an $18\%$ reduction in error for remote Bell state generation in a 1D ($1\times5$) qubit chain, and exhibit robustness against certain types of noise. Then we extend our approach to a 2D network, successfully generating a W state among the four corner qubits. These results highlight the potential of our enhanced quantum state transfer scheme for scalable and noise-resilient quantum communication and computing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_06669 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Remote entanglement generation via enhanced quantum state transfer Wang, Tian-Le Wang, Peng Zhao, Ze-An Zhang, Sheng Zhao, Ren-Ze Yang, Xiao-Yan Zhang, Hai-Feng Li, Zhi-Fei Wu, Yuan Guo, Liang-Liang Chen, Yong Tao, Hao-Ran Du, Lei Zhang, Chi Jia, Zhi-Long Kong, Wei-Cheng Duan, Peng Gong, Ming Guo, Guo-Ping Quantum Physics Achieving robust and scalable remote quantum entanglement is a fundamental challenge for the development of distributed quantum networks and modular quantum computing systems. Along this, perfect state transfer (PST) and fractional state transfer (FST) have emerged as promising schemes for quantum state transfer and remote entanglement generation using only nearest-neighbor couplings. However, the current implementations suffer from quantum loss and limited parameter tunability. In this work, we propose a new quantum state transfer scheme based on a zig-zag configuration, which introduces a controlling parameter for PST and FST. We show that this new parameter can suppress the population in the intermediate qubits, thereby reducing losses. We experimentally demonstrate the dynamics of different configurations on a superconducting quantum processor, achieving an $18\%$ reduction in error for remote Bell state generation in a 1D ($1\times5$) qubit chain, and exhibit robustness against certain types of noise. Then we extend our approach to a 2D network, successfully generating a W state among the four corner qubits. These results highlight the potential of our enhanced quantum state transfer scheme for scalable and noise-resilient quantum communication and computing. |
| title | Remote entanglement generation via enhanced quantum state transfer |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2506.06669 |