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Entangled Hbars

Stronger Bell Inequalities for Werner states?

 contact:  N. Gisin  date:  20 Jun 2003  last progress:    -    solved by:    -  

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Problem   Background   Literature  

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Problem

Find Bell Inequalities which are stronger than the CHSH inequalities in the sense that they are violated by a wider range of Werner states.

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Background

Recently, Daniel Collins and Nicolas Gisin [CG] found a Bell Inequality and states which violate the new but not the CHSH inequalities. Alas, the range of Werner states violating the new inequality is smaller than that for the CHSH setting.

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Literature

[CG]D. Collins, N. Gisin, »A Relevant Two Qubit Bell Inequality Inequivalent to the CHSH Inequality«, quant-ph/0306129 (2003).

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