# arc.calculations_atom_single.Wavefunction.getPsi#

Wavefunction.getPsi(x, y, z)[source]#

Calculates list of $$\psi_{m_s} (x,y,z)$$

At point define by Cartesian coordinates returns list of $$\psi_{m_s} (x,y,z)$$ wavefunction values corresponding to different electron spin projection values $$m_s$$.

Parameters
• x (float) – Cartesian coordinates of selected point, relative to the atom core. (in atomic units of Bohr radius $$a_0$$)

• y (float) – Cartesian coordinates of selected point, relative to the atom core. (in atomic units of Bohr radius $$a_0$$)

• z (float) – Cartesian coordinates of selected point, relative to the atom core. (in atomic units of Bohr radius $$a_0$$)

Returns

list of complex values corresponding to $$\psi_{m_s} (\theta, \phi, r)$$ for different spin states $$m_s$$ contributing to the state in decreasing order of $$m_s$$. For example, for arc.AlkaliAtom returns $$\psi_{m_s=+1/2} (\theta, \phi, r)$$ and $$\psi_{m_s=-1/2} (\theta, \phi, r)$$ . )`.