Proposal of an experimentally accessible measure of many-fermion entanglement
arXiv:quant-ph/0511222 · doi:10.1103/PhysRevLett.96.240403
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.
arXiv comment5 pages, 3 figures, published version
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