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Feedback control of entanglement in a linear quantum network: A case study

Yamamoto, Naoki; Nurdin, Hendra; James, Matthew; Petersen, Ian

Description

In this paper, we consider a linear quantum network composed of two distantly separated cavities that are connected via a one-way optical field. When one of the cavity is damped and the other is undamped, the overall cavity state obtains a large amount of entanglement in its quadratures. This entanglement however immediately decays and vanishes in a finite time. That is, entanglement sudden-death occurs. We show that the proportional measurement feedback method proposed by Wiseman can avoid...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Conference paper
URI: http://hdl.handle.net/1885/27673
Source: Proceedings of IEEE Conference on Decision and Control 2008
DOI: 10.1109/CDC.2008.4739032

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