Multipartite high-dimensional quantum state engineering via discrete-time quantum walk

doi:10.1103/PhysRevA.109.032229

	Multipartite high-dimensional quantum state engineering via discrete-time quantum walk
	Nie, Junhong ; Li, Meng 1; Sun, Xiaoming
	2024-03-29
发表期刊	PHYSICAL REVIEW A
ISSN	2469-9926
卷号	109 期号:3 页码:12
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.
DOI	10.1103/PhysRevA.109.032229
收录类别	SCI
语种	英语
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
WOS类目	Optics ; Physics, Atomic, Molecular & Chemical
WOS记录号	WOS:001198944300003
出版者	AMER PHYSICAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/39011
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.