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rhundt
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6 votes
1 answer
328 views

Why can I use the Sum of Eigenvectors for Phase Estimation in Shor

4 votes
1 answer
312 views

Why is the superposition of all states an eigenvector, with eigenvalue 1, of the QFT?

4 votes
1 answer
125 views

In Solovay-Kitaev's algorithm, where does the rotation relation $\sin(\theta / 2) = 2 \sin^2(\phi/2)\sqrt{1 - \sin^4(\phi/2)}$ come from?

4 votes
1 answer
1k views

VQE - How to get from expectation value to eigenvalue?

3 votes
1 answer
2k views

How to get Bloch sphere Cartesian coordinates from density matrix

2 votes
2 answers
338 views

Why does Grover's algorithm reflect along $|000...0\rangle$?

2 votes
1 answer
164 views

Entanglement test in Pauli Representation

1 vote
1 answer
61 views

Is the norm of a inner product symmetric?

1 vote
2 answers
241 views

Is there a clear, understandable example of Quantum Circuit Cutting I can use to understand the process?

1 vote
0 answers
44 views

How to get the to the average in the Ventura-Martinez version of Grover search?

1 vote
1 answer
60 views

In the quantum mean computation circuit, how to apply the controlled rotation to the extra qubit?

0 votes
0 answers
16 views

Amplitude Encoding via Ventura-Martinez leads to Division-by-0?

0 votes
1 answer
113 views

Why not just use Bell state entanglement in the CHSH game?

0 votes
1 answer
136 views

Find local state and compute Bloch coordinates, like Quirk

0 votes
1 answer
261 views

Decomposition of a $2\times2$ matrix in terms of Pauli matrices and rank-one projectors