Abstract
We show via Wigner functions how the sum and difference between Shannon entropies in position and in momentum space are related to conditional entropies, and how these quantities are linked to position–momentum correlations. The connection between Fermi, Coulomb and position–momentum correlations on these quantities is made, and the impact of these are discussed in atomic systems.
Acknowledgements
The authors thank the Consejo Nacional de Ciencias y Tecnologia (CONACyt) and the PROMEP program of the Secretaria de Educación Pública in México for support.