Quantum Computing
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71 Questions

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1 answers
9 votes
438 views
1 bookmarks
Quantum attack on hash functions
1 answers
7 votes
179 views
2 bookmarks
Closest quantum state with a fixed marginal: Analytical solution?
1 answers
7 votes
363 views
2 bookmarks
Why does Google's quantum processor outperform IBM's?
3 answers
6 votes
947 views
1 bookmarks
What is the location of the Qiskit config file?
1 answers
6 votes
159 views
1 bookmarks
Bob applies a projector - what happens to eigenvalues of Alice's reduced state?
2 answers
6 votes
271 views
1 bookmarks
Balanced vs unbalanced superposition distinguisher
2 answers
5 votes
38 views
What is the form of a unitary $U$ that preserves the marginals on a given state, $\text{Tr}_A(U\rho_{AB} U^\dagger) = \rho_B$?
2 answers
5 votes
2k views
3 bookmarks
How to find the operator sum representation of the depolarizing channel?
1 answers
5 votes
130 views
1 bookmarks
Trace distance between mixed state and pure state vs trace distance between their purifications
1 answers
5 votes
114 views
Stinespring dilation: Size of environment
1 answers
5 votes
167 views
Closeness of purifications of states
0 answers
5 votes
104 views
Connection between smooth max-relative entropy and smooth max-information
1 answers
5 votes
596 views
1 bookmarks
Getting a layout for qubits in Qiskit
3 answers
5 votes
567 views
1 bookmarks
Intuitive role of the polar decomposition in proof of Uhlmann's theorem for fidelity
1 answers
4 votes
74 views
1 bookmarks
Is there a higher dimensional Fredkin gate?
1 answers
4 votes
98 views
2 bookmarks
Questions about the relation between max-relative entropy $D_{\max}(\rho||\sigma)$ and max-information
1 answers
4 votes
54 views
Upper bounding a permutation invariant state
0 answers
4 votes
114 views
Calculating the entropy of a quantum state
1 answers
4 votes
68 views
1 bookmarks
Non-lockability of quantum max-entropy
1 answers
4 votes
128 views
Can vectorization lead to mixed states?
0 answers
4 votes
120 views
Schumacher compression - comparing with Shannon compression
1 answers
3 votes
61 views
3 bookmarks
How to compute derivatives of partial traces of the form $\frac{\partial \operatorname{Tr}_B(F(\mathbf{X}))}{\partial \mathbf{X}}$?
1 answers
3 votes
63 views
How does a quantum circuit capture the "non-halting ability" of classical Turing machines?
1 answers
3 votes
34 views
Quasi concavity of max-relative entropy?
1 answers
3 votes
136 views
1 bookmarks
Diamond norm distance bound on Stinespring dilations of channels
1 answers
3 votes
48 views
1 bookmarks
Continuity of Renyi entropies - limiting cases
0 answers
3 votes
33 views
Uhlmann's theorem analogue for channels
1 answers
3 votes
58 views
Tradeoff between error and rates of quantum communication
2 answers
3 votes
147 views
2 bookmarks
Bounding diamond norm distance using probability of error in transmission of classical information
1 answers
3 votes
244 views
1 bookmarks
What exactly is the relation between the Holevo quantity and the mutual information?
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