Function giwn_single_pole 

pub fn giwn_single_pole<S>(
    matsubara_freq: &MatsubaraFreq<S>,
    omega: f64,
    beta: f64,
) -> Result<Complex<f64>, Error>
where
    S: StatisticsType,

Generic single-pole Green’s function at Matsubara frequency

Computes G(iν) = 1/(iν - ω) for a single pole at frequency ω.

Type Parameters

• S - Statistics type (Fermionic or Bosonic)

Arguments

• matsubara_freq - Matsubara frequency
• omega - Pole position (real frequency)
• beta - Inverse temperature

Returns

Complex-valued Green’s function G(iν)

Errors

Error::InvalidParameter if beta is not positive and finite, or omega is not finite