mm.physics.overlap

mrmustard.physics.overlap(A, B)

Calculates the overlap between two quantum states.

If the states are both pure it returns \(|<A|B>|^2\), if one is mixed it returns \(<A|B|A>\) and if both are mixed it returns \(Tr[AB]\).

Parameters:

• A (State) –

• B (State) –

Returns:

the overlap between the two states

Return type:

float

code/api/mrmustard.physics.overlap

 

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