Parameter: nfreq

Definition

Number of Matsubara frequency points sampling by continuous-time quantum Monte Carlo quantum impurity solver.

Type

Integer

Default value

128

Component

ALL

Behavior

Determine the size of involved arrays. The larger nfreq, the more computational time is needed.

Comment

There are mfreq matsubara frequency points in total. The physical observables on the first nfreq points are sampled directly by the Monte Carlo algorithm, however, the rest (mfreq - nfreq + 1 points) values are evaluated by using Hubbard-I approximation or the other algorithm.