An entanglement filter

Ryo Okamoto; Jeremy L. O'Brien; Holger F. Hofmann; Tomohisa Nagata; Keiji Sasaki; Shigeki Takeuchi

doi:10.1126/science.1167182

An entanglement filter

Ryo Okamoto, Jeremy L. O'Brien, Holger F. Hofmann, Tomohisa Nagata, Keiji Sasaki, Shigeki Takeuchi

Research output: Contribution to journal › Article › peer-review

71 Citations (Scopus)

Abstract

The ability to filter quantum states is a key capability in quantum information science and technology, in which one-qubit filters, or polarizers, have found wide application. Filtering on the basis of entanglement requires extension to multi-qubit filters with qubit-qubit interactions. We demonstrated an optical entanglement filter that passes a pair of photons if they have the desired correlations of their polarization. Such devices have many important applications to quantum technologies.

Original language	English
Pages (from-to)	483-485
Number of pages	3
Journal	Science
Volume	323
Issue number	5913
DOIs	https://doi.org/10.1126/science.1167182
Publication status	Published - 23 Jan 2009
Externally published	Yes

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AU - Hofmann, Holger F.

AU - Nagata, Tomohisa

AU - Sasaki, Keiji

AU - Takeuchi, Shigeki

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An entanglement filter

Abstract

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