An elementary formula for the von Neumann and Rnyi 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.
|Journal||Physical Review A - Atomic, Molecular, and Optical Physics|
|Publication status||Published - Aug 1 2005|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics