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How do I compute the square root of the $Y$ gate?
4 votes

There are various ways of finding the square root of a gate. As the Pauli matrix $Y$ is self adjoing, we can use the Euler formula: $$R_y(\theta) = e^{-i\frac{\theta}{2}Y} = \cos\frac{\theta}{2}I -i ...

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Confusion regarding time complexity in the HHL algorithm
1 votes

It is incorrect to say that the time of simulation is $T O(\log N s^2t)$ (it's also better written as $O(T\log N s^2t)$). Conceptually, the simulation time ends at $O(\log N s^2t)$. If you want to ...

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