Qapply

Logic for applying operators to states.

Todo: * Sometimes the final result needs to be expanded, we should do this by hand.

sympy.physics.quantum.qapply.qapply(e, **options)

Apply operators to states in a quantum expression.

Parameters:

e : Expr

The expression containing operators and states. This expression tree will be walked to find operators acting on states symbolically.

options : dict

A dict of key/value pairs that determine how the operator actions are carried out.

The following options are valid:

• dagger: try to apply Dagger operators to the left (default: False).
• ip_doit: call .doit() in inner products when they are encountered (default: True).

Returns:

e : Expr

The original expression, but with the operators applied to states.