Attila Kun
  • Member for 1 year, 5 months
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5 answers
32 votes
3k views
38 bookmarks
Introductory material for quantum machine learning
5 answers
26 votes
4k views
18 bookmarks
How to derive the CNOT matrix for a 3-qubit system where the control & target qubits are not adjacent?
2 answers
7 votes
504 views
4 bookmarks
What is the advantage of quantum machine learning over traditional machine learning?
1 answers
6 votes
370 views
3 bookmarks
Is there any 'official' list of errata for Nielsen & Chuang?
1 answers
8 votes
324 views
3 bookmarks
Consequences of $MIP^\ast=RE$ Regarding Quantum Algorithms
4 answers
5 votes
143 views
2 bookmarks
Quantum teleportation and the reality of quantum states
1 answers
5 votes
246 views
2 bookmarks
Decomposition of any 2-level matrix into single qubit and CNOT gates
1 answers
6 votes
157 views
1 bookmarks
Bob applies a projector - what happens to eigenvalues of Alice's reduced state?
1 answers
4 votes
318 views
4 bookmarks
Proof that any unitary can be written as $U=e^{-iH}$ with $H$ Hamiltonian with bounded norm
2 answers
6 votes
196 views
1 bookmarks
Can $|\Psi\rangle\simeq\sum_k |u_k\rangle|v_k\rangle$ be maximally entangled even if $\{|u_k\rangle\}_k,\{|v_k\rangle\}_k$ are not orthonormal?
1 answers
4 votes
115 views
1 bookmarks
Can local projections increase entanglement?
1 answers
3 votes
177 views
3 bookmarks
How to implement linear combination of two unitary gates in a quantum circuit?
0 answers
1 votes
301 views
1 bookmarks
Can one use a quantum circuit as a pathfinding algorithm?
1 answers
7 votes
206 views
1 bookmarks
Does the GLOA have any advantage over the Solovay-Kitaev algorithm?
1 answers
17 votes
756 views
6 bookmarks
What are examples of Hamiltonian simulation problems that are BQP-complete?
1 answers
4 votes
136 views
1 bookmarks
Is there a proof or example to show that a noiseless subsystem is not necessarily closed under addition?
2 answers
3 votes
98 views
1 bookmarks
Example of a two-qudit state whose measurement outcomes are independent in one basis but dependent in another
1 answers
5 votes
257 views
4 bookmarks
How can the Holevo bound be used to show that $n$ qubits cannot transmit more than $n$ classical bits?
1 answers
2 votes
105 views
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Nielsen & Chuang Theorem 2.6 Proof
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5 votes
211 views
3 bookmarks
Is Connes' Embedding Problem akin the word problem for finitely presented groups?
1 answers
3 votes
280 views
1 bookmarks
How to construct a non-trivial (non-projective) POVM measurement example?
1 answers
4 votes
96 views
2 bookmarks
Adding a phase to qubit: why is it necessary for arbitrary single qubit gate
1 answers
2 votes
43 views
1 bookmarks
$N(\frac{1}{2},2)=3$ for vectors in a Hilbert Space
2 answers
4 votes
687 views
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Can classical linear algebra solvers implement quantum algorithms with similar speed-ups?
1 answers
2 votes
136 views
1 bookmarks
N-Qubit Hadamard vs Quantum Fourier Transform
1 answers
2 votes
95 views
1 bookmarks
Is it possible to detect the phase $\pi$ or 0 for the single qubit circuit X H P?
1 answers
1 votes
54 views
1 bookmarks
How to compute the inverse of a unitary B when it's defined only by B|0⟩=XXXX?
1 answers
5 votes
261 views
1 bookmarks
Showing that Matrix Inversion is BQP-complete - HHL Algorithm
1 answers
8 votes
203 views
2 bookmarks
Nielsen and Chuang's proof for 'approximating arbitrary unitary gates is generically hard'
1 answers
8 votes
417 views
3 bookmarks
What is recursive Fourier sampling and how does it prove separations between BQP and NP in the black-box model?