26 citations · 26 across the 3 of their papers we have counts for
3 papers
quant-ph2022
Analysis of quantum correlations within the ground state of a three level Lipkin model
Javier Faba, Vicente Martín, Luis Robledo
The performance of beyond mean field methods in solving the quantum many body problem for fermions is usually characterized by the correlation energy measured with respect to the u…
quant-ph2021
Correlation energy and quantum correlations in a solvable model
Javier Faba, Vicente Martín, Luis Robledo
Typically in many-body systems the correlation energy, which is defined as the difference between the exact ground state energy and the mean-field solution, has been a measure of t…
quant-ph2020★ 26 cited
Two-orbital quantum discord in fermion systems
Javier Faba, Vicente Martín, Luis Robledo
A simple expression to compute the quantum discord between two orbitals in fermion systems is derived using the parity superselection rule. As the correlation between orbitals depe…