Details

Autor(en) / Beteiligte

• Ren Xijun
• Jiang Wei
• Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080

Titel

Entanglement monogamy inequality in a 2 x 2 x 4 system

Ist Teil von

• Physical review. A, Atomic, molecular, and optical physics, 2010-02, Vol.81 (2)

Ort / Verlag

United States

Erscheinungsjahr

2010

Quelle

PROLA - Physical Review Online Archive

Beschreibungen/Notizen

• In this report, we show explicitly that the tangles of an arbitrary pure state in a 2 x 2 x 4 system satisfy the monogamy relation. This relation is also generalized to mixed states. As the tangle is always larger than the square of the concurrence, our result implies that the monogamy relation holds for concurrence too. It also supports the idea that the tangle could qualify as an elementary bipartite entanglement measure.