期刊
PHYSICAL REVIEW A
卷 104, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.104.023701
关键词
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资金
- Polish National Agency for Academic Exchange in the Bekker Scholarship Programme
- Foundation for Polish Science (IRAP project, ICTQT) [MAB/2018/5]
- EU within Smart Growth Operational Programme
- National Research Foundation of Korea [2019M3E4A1079777]
- KIST ORP program [2E31021]
- National Research Foundation of Korea [2019M3E4A1079777] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The proposed scheme efficiently generates multipartite W states for an arbitrary number of qubits, utilizing particle indistinguishability as a valuable resource of entanglement. It demonstrates competitive success probability compared to existing proposals and remains efficient for both bosons and fermions.
A scheme is presented for generation of a multipartite W state for an arbitrary number of qubits. Based on a recent proposal of entanglement without touching, it serves to demonstrate the potential of particle indistinguishability as a useful resource of entanglement for practical applications. The devised scheme is efficient in design, meaning that it is built with linear optics without the need for auxiliary particles nor measurements. Yet, the success probability is shown to be highly competitive compared with the existing proposals (i.e., decreases polynomially with the number of qubits) and remains insensitive to particle statistics (i.e., has the same efficiency for bosons and fermions).
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