Method to normalize states

[JacobHast]

Before posting a feature request

• I have searched exisisting GitHub issues to make sure the feature request does not already exist.

Feature details

I would like to have a method for normalizing states e.g., state.normalize() or state.normalized() or state.unit() (qutip syntax), which returns a normalized version of the state, i.e. where state.probability = 1.

Implementation

No response

How important would you say this feature is?

2: Somewhat important. Needed this quarter.

Additional information

No response

[ziofil]

see #424