Elementary formula for entanglement entropies of fermionic systems

P Lévay, S Nagy, J Pipek - Physical Review A—Atomic, Molecular, and Optical …, 2005 - APS
Physical Review A—Atomic, Molecular, and Optical Physics, 2005APS
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.
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.
American Physical Society
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