2005
DOI: 10.1103/physrevlett.95.123003
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New Measure of Electron Correlation

Abstract: We propose to quantify the correlation inherent in a many-electron (or many-fermion) wave function psi by comparing it to the unique uncorrelated state that has the same 1-particle density operator as does /|psi>

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Cited by 72 publications
(83 citation statements)
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“…This entanglement measure is of quartic order, and can be regarded as a generalization of the well-known three-tangle τ 123 of three-qubit entanglement based on Cayley's hyperdeterminant. We also introduced two further quantities of order three and two in the amplitudes (see Eqs (16)(17)(18)(19)30)). They are the dual fermionic stateP and the Plücker relations Π(P ) .…”
Section: Discussionmentioning
confidence: 99%
“…This entanglement measure is of quartic order, and can be regarded as a generalization of the well-known three-tangle τ 123 of three-qubit entanglement based on Cayley's hyperdeterminant. We also introduced two further quantities of order three and two in the amplitudes (see Eqs (16)(17)(18)(19)30)). They are the dual fermionic stateP and the Plücker relations Π(P ) .…”
Section: Discussionmentioning
confidence: 99%
“…Several efforts have been devoted to the study of the entanglement features in systems of N identical fermions in the last few years [13][14][15][16][17][18][19][20][21][22]. Various bipartite entanglement measures for pure N -fermion states have been discussed, yet these measures are, in general (for N > 2), difficult to implement [5].…”
Section: Introductionmentioning
confidence: 99%
“…Покажем теперь, что зацепление можно рассматривать в качестве меры корреля-ции электронов [26]- [28]. Зацепление представляет собой физическую наблюдаемую, которую можно непосредственно измерить как фон неймановскую энтропию систе-мы.…”
Section: зацепление как мера корреляции электроновunclassified