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For questions about the construction of complex circuits using elementary quantum gates.

2
votes
1answer
I read an interesting paper of QEC with only two extra qubits. In the paper, there is a circuit. Note that . Here are some contexts of the paper: "The stablizer is $XZZXI$. If the second gate fails an …
asked Aug 19 '20 by peachnuts
3
votes
1answer
In this paper, this figure shows the perceptron model used for quantum neural network. When realizing the inner product between weight vector and input vector, it defines a unitary transformation $U_ …
asked Jul 1 '21 by peachnuts
1
vote
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I am following an example of preparing an input state using amplitude encoding from this book. How to calculate $\beta_1^1$ using given formula above? In my understanding, $\beta_1^1 = 2\arcsin(\frac{ …
asked Jun 26 '21 by peachnuts