Generation and superactivation of bound entanglement

Fumihiro Kaneda, Ryosuke Shimizu, Satoshi Ishizaka, Yasuyoshi Mitsumori, Hideo Kosaka, Keiichi Edamatsu

研究成果: Conference contribution

抄録

We report the experimental realization of the four-partite bound-entangled state, i.e., Smolin state [1] and demonstrate the superactivation of the bound entanglement. Bound entanglement is a class of multipartite entanglement that cannot be distilled into pure entanglement under local operations and classical communication (LOCC). Despite its undistillable property, this class of entanglement has interesting properties that are expected to be useful in quantum information processing (QIP). For instance, in the Smolin state, the bound entanglement can be activated into distillable entanglement when two of the parties get together. The process is called unlocking [1], and has been demonstrated experimentally [2]. More importantly, the bound entanglement can be activated with the help of entanglement in other systems [3]. The activation of bound entanglement, i.e., superactivation, plays an essential role in the QIP protocols using bound entangled states (e.g., remote information concentration [4]).

本文言語English
ホスト出版物のタイトル2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
DOI
出版ステータスPublished - 2011 9 6
イベント2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 - Munich, Germany
継続期間: 2011 5 222011 5 26

出版物シリーズ

名前2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011

Other

Other2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
国/地域Germany
CityMunich
Period11/5/2211/5/26

ASJC Scopus subject areas

  • 電子工学および電気工学

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