Parameter: U

Definition

Averaged Coulomb interaction $U$.

Type

Float, double precision

Default value

4.0

Component

ALL

Behavior

Actually, it is not used by the quantum impurity solvers to build the Coulomb interaction matrix. It will be output by the impurity solver as a reference. You can set it to any values. I forgot why I had designed this parameter.

Comment

See also Uc, Uv, Jz, Js and Jp parameters for more details.