Elementary formula for entanglement entropies of fermionic systems
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- 3 August 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 72 (2) , 022302
- https://doi.org/10.1103/physreva.72.022302
Abstract
An elementary formula for the von Neumann and Rényi entropies describing quantum correlations in two-fermionic systems having four single-particle states is presented. An interesting geometric structure of fermionic entanglement is revealed. A connection with the generalized Pauli principle is established.Keywords
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