- if `env_type` is **prod-gauss**: \(v(\mathbf{r}) = \prod_{a} \left(1 - e^{-\alpha_a (\mathbf{r} - \mathbf{R}_a)^2 } \right)\)
- if `env_type` is **sum-gauss**: \(v(\mathbf{r}) = 1 - \sum_{a} \left(1 - c_a e^{-\alpha_a (\mathbf{r} - \mathbf{R}_a)^2 } \right)\)
Here, \(A\) designates the nuclei, and the coefficients and exponents are defined in the tables `enc_coef` and `env_expo` respectively.
## j1e_type Options
The Jastrow used is:
\begin{equation}
\tau = \sum_i u_{1e}(\mathbf{r}_i)
\end{equation}
- if `j1e_type` is **none**: No one-electron Jastrow is used.
- if `j1e_type` is **gauss**: We use \(u_{1e}(\mathbf{r}) = \sum_A \sum_{p_A} c_{p_A} e^{-\alpha_{p_A} (\mathbf{r} - \mathbf{R}_A)^2}\), where the \(c_p\) and \(\alpha_p\) are defined by the tables `j1e_coef` and `j1e_expo`, respectively.
- if `j1e_type` is **charge-harmonizer**: The one-electron Jastrow factor depends on the two-electron Jastrow factor \(u_{2e}\) such that the one-electron term is added to compensate for the unfavorable effect of altering the charge density caused by the two-electron factor: