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Proposal of an experimentally accessible measure of many-fermion entanglement

M. Kindermann
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Abstract

We propose a measure of interaction-induced ground state entanglement in many-fermion systems that is experimentally accessible. It is formulated in terms of cross-correlations of currents through resonant fermion levels weakly coupled to the probed system. The proposed entanglement measure vanishes in the absence of many-body interactions and it is related to measures of occupation number entanglement. We evaluate it for two examples of interacting electronic nanostructures.

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M. Kindermann. 2006-06-29. Proposal of an experimentally accessible measure of many-fermion entanglement. https://doi.org/10.1103/physrevlett.96.240403

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