An elementary formula for entanglement entropies of fermionic systems
Péter Lévay, Szilvia Nagy, János Pipek
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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