Bra

class discopy.quantum.gates.Bra(*bitstring)

Bases: RealConjugate, Box

Implements qubit post-selection for a given bitstring.

>>> assert Bra(1, 0).dom == qubit ** 2
>>> assert Bra(1, 0).eval()\
...     == Tensor(dom=Dim(2, 2), cod=Dim(1), array=[0, 0, 1, 0])

property bitstring

The bitstring of a Bra.