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On Estimation of Fully Entangled Fraction

We study the fully entangled fraction (FEF) of arbitrary mixed states. New upper bounds of FEF are derived. These upper bounds make complements on the estimation of the value of FEF. For weakly mixed quantum states, an upper bound is shown to be very tight to the exact value of FEF.

preprint2010arXivOpen access
Rui-Juan GuMing LiShao-Ming FeiXianqing Li-Jost
quant-ph
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Open access4 authors1 topic
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Rui-Juan GuMing LiShao-Ming FeiXianqing Li-Jost

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