Multipartite high-dimensional quantum state engineering via discrete-time quantum walk
文献类型：期刊论文
| 作者 | Nie, Junhong; Li, Meng1; Sun, Xiaoming |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2024-03-29 |
| 卷号 | 109期号:3页码:12 |
| ISSN号 | 2469-9926 |
| DOI | 10.1103/PhysRevA.109.032229 |
| 英文摘要 | Quantum state engineering, namely, the generation and control of arbitrary quantum states, is drawing more and more attention due to its wide applications in quantum information and computation. However, there is no general method in theory, and the existing schemes also depend heavily on the selected experimental platform. In this article, we give two schemes for the generating task of arbitrary quantum state in c -partite d -dimensional system, both of which are based on a discrete -time quantum walk with a 2c -dimensional timeand positiondependent coin. The first procedure is a d -step quantum walk where all the d coins are nonidentity, while the second procedure is an O(d )-step quantum walk where only O(log d) coins are nonidentity. A concrete example of preparing generalized Bell states is given to demonstrate the first scheme we proposed. Furthermore, the first scheme can be applied to give an alternative approach to the quantum state preparation problem which is one of the fundamental tasks of quantum information processing. We design circuits for quantum state preparation with the help of our quantum state engineering scheme that match the best current result in both size and depth of the circuit asymptotically. |
| 资助项目 | National Natural Science Foundation of China[62325210] ; National Natural Science Foundation of China[62301531] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB28000000] ; China Postdoctoral Science Foundation[2022M723209] |
| WOS研究方向 | Optics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001198944300003 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://119.78.100.204/handle/2XEOYT63/39010]  |
| 专题 | 中国科学院计算技术研究所期刊论文_英文 |
| 通讯作者 | Li, Meng |
| 作者单位 | 1.Chinese Acad Sci, Inst Comp Technol, State Key Lab Processors, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Comp Sci & Technol, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nie, Junhong,Li, Meng,Sun, Xiaoming. Multipartite high-dimensional quantum state engineering via discrete-time quantum walk[J]. PHYSICAL REVIEW A,2024,109(3):12. |
| APA | Nie, Junhong,Li, Meng,&Sun, Xiaoming.(2024).Multipartite high-dimensional quantum state engineering via discrete-time quantum walk.PHYSICAL REVIEW A,109(3),12. |
| MLA | Nie, Junhong,et al."Multipartite high-dimensional quantum state engineering via discrete-time quantum walk".PHYSICAL REVIEW A 109.3(2024):12. |
入库方式： OAI收割
来源：计算技术研究所
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