Quantum Computing
Norbert Schuch's user avatar
Norbert Schuch's user avatar
Norbert Schuch's user avatar
Norbert Schuch
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All Questions Answers
Score Newest
answer
17
Can quantum states have negative probability?
Jul 29, 2020
answer
12
Are there quantum algorithms showing a double exponential advantage?
Apr 9, 2022
answer
11
What does it mean "less than identity" in the operator sum representation?
Jan 18, 2020
answer
11
Do the Kraus operators of a CPTP channel need to be orthogonal?
Aug 8, 2019
answer
10
How to construct a multi-qubit controlled-Z from elementary gates?
Aug 24, 2018
answer
9
Maximally mixed states for more than 1 qubit
Nov 1, 2018
answer
9
Quantum Supremacy: How do we know that a better classical algorithm doesn't exist?
Nov 18, 2018
answer
8
How to find the operator sum representation of the depolarizing channel?
Dec 16, 2018
answer
8
What does it mean to take the Choi-Jamiolkowski of a quantum channel?
Apr 20, 2020
answer
7
Can any channel be written as $\Phi(X)=\operatorname{Tr}_{\mathcal Z}[U(X\otimes \sigma)U^\dagger]$ for any state $\sigma$?
Jul 18, 2020
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I spent a great deal of time answering a question, then the question (unfortunately along with the answer) was deleted. What can be done?
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What's the intuition behind the Choi-Jamiolkowski isomorphism?
39
Canonical examples of quantum channels
38
State of Matrix Product States
35
Canonical examples of quantum channels
20
Is the common formulation for (Ising Model) Monte Carlo simulations a bit off?

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