qit.utils.R_nmr

qit.utils.R_nmr(theta, phi)

SU(2) rotation ${\theta }_{\varphi }$ (NMR notation).

One-qubit rotation by angle theta about the unit vector $[\cos (\varphi ),\sin (\varphi ),0]$, or ${\theta }_{\varphi }$ in the NMR notation.

Parameters

• theta (float) – rotation angle

• phi (float) – angle between the rotation axis and the positive x axis

Returns

rotation matrix

Return type

array[complex]