New answers tagged matrix-representation
2
In your calculations you are getting the state
$$
|\psi \rangle = \frac{1}{\sqrt{2}}\begin{pmatrix} i \\ 1 \end{pmatrix}
$$
instead of what you are expecting
$$
|\phi \rangle = \frac{1}{\sqrt{2}}\begin{pmatrix} 1 \\ -i \end{pmatrix}.
$$
Well it turns out that in quantum theory these two states are considered the same! This is because they only differ up to a ...
1
Up until very recently, braket had no such feature. However, as of v1.7.0 (2021-06-25), unitary representations of circuits can now be calculated using the calculate_unitary function. Using the circuit you provided as an example:
In [1]: from braket.circuits import Circuit
...: from braket.circuits.gate import Gate
...: from braket.circuits.instruction ...
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