# aux_quantities

This module contains some global variables (such as densities and energies) which are stored in the EZFIO folder in a different place than determinants. This is used in practice to store density matrices which can be obtained from any methods, as long as they are stored in the same MO basis which is used for the calculations. In RSDFT calculations, this can be done to perform damping on the density in order to speed up convergence.

The main providers of that module are:

- `data_one_e_dm_alpha_mo` and `data_one_e_dm_beta_mo` which are the one-body alpha and beta densities which are necessary read from the EZFIO folder.

Thanks to these providers you can use any density matrix that does not necessary corresponds to that of the current wave function.

## EZFIO parameters

`data_energy_var```

  Variational energy computed with the wave function

`data_energy_proj```

  Projected energy computed with the wave function

`data_one_e_dm_alpha_mo```

  Alpha one body density matrix on the MO basis computed with the wave function

`data_one_e_dm_beta_mo```

  Beta one body density matrix on the MO basis computed with the wave function