wigner_big_D – WignerD

public interface wigner_big_D

Interface to access the routines to calculate D(α,β,γ) via matrix diagonalization or the analytic expression

Return the wigner D-matrix $D^j_{m',m}(\alpha, \beta, \gamma)$ for integer j

Type	Intent	Optional		Name
integer,	intent(in)		::	j	The angular momentum $j$
real(kind=rp),	intent(in)		::	euler_alpha	The Euler angle α
real(kind=rp),	intent(in)		::	euler_beta	The Euler angle β
real(kind=rp),	intent(in)		::	euler_gamma	The Euler angle γ
logical,	intent(in),	optional	::	use_analytic	Force the use of the analytic expression to obtain $d^j(\beta)$ ?

The Wigner D-matrix $D^j(\alpha,\beta,\gamma)$

Return the wigner D-matrix $D^j_{m',m}(\alpha, \beta, \gamma)$ for real j

Type	Intent	Optional		Name
real(kind=rp),	intent(in)		::	j	The angular momentum $j$
real(kind=rp),	intent(in)		::	euler_alpha	The Euler angle α
real(kind=rp),	intent(in)		::	euler_beta	The Euler angle β
real(kind=rp),	intent(in)		::	euler_gamma	The Euler angle γ
logical,	intent(in),	optional	::	use_analytic	Force the use of the analytic expression to obtain $d^j(\beta)$ ?

The Wigner D-matrix $D^j(\alpha,\beta,\gamma)$