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An elementary formula for entanglement entropies of fermionic systems

Péter Lévay·Szilvia Nagy·János Pipek
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Abstract

An elementary formula for the von Neumann and Renyi 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.

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Péter Lévay, Szilvia Nagy, János Pipek. 2005-01-25. An elementary formula for entanglement entropies of fermionic systems. https://doi.org/10.1103/physreva.72.022302

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