fermi() [1/2]

template<typename T >

T cntr::fermi	(	T	beta,
		T	omega
	)

Evaluates the Fermi distribution function.

Purpose

Evaluates the Fermi distribution function \( n_\mathrm{F}(\omega)\) at given inverse temperature \(\beta\).

Parameters

beta	[T] inverse temperature \(\beta\)
omega	[T] energy

Definition at line 44 of file cntr_equilibrium_impl.hpp.

Referenced by fermi().

                         {
    T arg = omega * beta;
    if (fabs(arg) > EXPMAX) {
        return (arg > 0.0 ? 0.0 : 1.0);
    } else {
        return 1.0 / (1.0 + exp(arg));
    }
}

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