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Title: Preparation and entanglement purification through two-step measurements
Authors: Qiu, Nan
Wang, Shu-Chao
Kwek, Leong Chuan
Wang, Xiang-Bin
Issue Date: 2012
Citation: Qiu, N., Wang, S. C., Kwek, L. C., & Wang, X. B. (2012). Preparation and entanglement purification through two-step measurements. Physical Review A, 86(1), 012313.
Abstract: A method of purification through Zeno-like measurements has been proposed by Nakazato and co-workers [H. Nakazato, T. Takazawa, and K. Yuasa, Phys. Rev. Lett. 90, 060401 (2003); H. Nakazato, M. Unoki, and K. Yuasa, Phys. Rev. A 70, 012303 (2004)]. A series of frequent measurements on a quantum system is demonstrated to result in the purification of another quantum system in interaction with the former. Inspired by this idea, we have designed a strategy to obtain entangled states through only two measurements. A deterministic purification method is also provided in this article.
ISSN: 1050-2947 (print)
1094-1622 (online)
Other Identifiers: 10.1103/PhysRevA.86.012313
Appears in Collections:Journal Articles

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