Quantum Computing
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FDGod
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All Questions Answers
Score Newest
answer
5
What are "completely positive" and "CPTP" quantum maps?
Sep 20
answer
4
What is the expression for $|\psi\rangle\!\langle\psi|$ if $|\psi\rangle=\cos(\theta/2)|0\rangle+\sin(\theta/2)e^{i\phi}|1\rangle$?
Oct 31
answer
4
What is the relation between maximally entangled and maximally mixed?
Nov 7
question
4
If a quantum error correcting code can correct every single-qubit $X$ and $Z$ error, can it also correct every single-qubit $Y$ error?
Nov 10
answer
4
How to prove the matrix identities $HXH = Z$ and $HZH = X$?
Aug 13
question
3
List of codes which can perform non-Clifford gates fault-tolerantly
Jun 26
answer
3
How to get a state vector from bloch sphere coordinates for 1 qubit?
May 2
answer
3
Are equiprobable state same as superposition state
Aug 14
question
3
For any given parameters, does there always exist a quantum code which saturates the Quantum Hamming Bound?
Nov 8
answer
3
Prove the fidelity equals $F( \rho , \sigma) = |\langle \psi_{\rho} | \psi_{\sigma}\rangle|^2$ for pure states
Sep 11
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