Quantum Computing
chrysaor4
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6 answers
24 votes
7k views
9 bookmarks
How do I build a gate from a matrix on Qiskit?
2 answers
22 votes
4k views
8 bookmarks
What is the difference between transmon and Xmon qubits?
2 answers
20 votes
590 views
4 bookmarks
Can adiabatic quantum computing be faster than Grover's algorithm?
4 answers
18 votes
2k views
6 bookmarks
Alternative to Bloch sphere to represent a single qubit
3 answers
18 votes
3k views
12 bookmarks
What are magic states?
5 answers
15 votes
563 views
3 bookmarks
Why do error correction protocols only work when the error rates are already significantly low to begin with?
0 answers
13 votes
202 views
7 bookmarks
Reference that explains how to read 3d topological diagrams for surface code computations
1 answers
12 votes
2k views
5 bookmarks
Are circuits with more than 1000 gates common?
2 answers
10 votes
324 views
2 bookmarks
Are there any algorithms that take measurements in an intermediate step?
0 answers
8 votes
290 views
5 bookmarks
Can we use quantum phase estimation to learn anything about the dynamics of puzzles like the Rubik's cube?
1 answers
8 votes
328 views
3 bookmarks
Requirements for Achieving a Quantum Speedup
1 answers
7 votes
640 views
5 bookmarks
Physical implementation of gates on IBM Q
0 answers
7 votes
172 views
5 bookmarks
How does the invertibility of a quantum map reflect on its Kraus operators?
1 answers
6 votes
211 views
1 bookmarks
What are examples of extremal non-projective POVMs?
2 answers
6 votes
348 views
4 bookmarks
Are three POVM measurements on a single qubit physically realizable?
1 answers
6 votes
253 views
1 bookmarks
Understanding classical vs. quantum channel capacities
1 answers
6 votes
267 views
6 bookmarks
What is the relation between POVMs and observables (as Hermitian operators)?
2 answers
6 votes
401 views
5 bookmarks
Expected repetitions of the quantum part of Shor's algorithm
1 answers
5 votes
50 views
2 bookmarks
Does the Eastin-Knill theorem hold for repetition codes?
2 answers
5 votes
194 views
2 bookmarks
Can a merchant who accepts a knot-based quantum coin mint her own knot-based coin?
2 answers
5 votes
627 views
3 bookmarks
How to define a quantum channel for the partial trace?
3 answers
5 votes
2k views
5 bookmarks
Why does quantum computing generally use matrix formulation of quantum mechanics rather than a continuous variable formulation?
3 answers
5 votes
567 views
1 bookmarks
Intuitive role of the polar decomposition in proof of Uhlmann's theorem for fidelity
3 answers
5 votes
481 views
2 bookmarks
Nielsen&Chuang 5-qubit quantum error-correction encoding gate
2 answers
4 votes
435 views
2 bookmarks
Inverting the depolarizing channel
2 answers
4 votes
224 views
1 bookmarks
Determining whether there exists an equivalent set of unitary Kraus operators
2 answers
4 votes
723 views
3 bookmarks
Do the Kraus operators of a CPTP channel need to be orthogonal?
1 answers
4 votes
73 views
3 bookmarks
Understanding the quantum circuit for the quantum adder Toffoli gate
2 answers
4 votes
94 views
1 bookmarks
Can we rotate Bloch vectors for qudits like we do with qubits in the Bloch sphere?
5 answers
3 votes
295 views
1 bookmarks
How do I get the Unitary matrix of a circuit without using the 'unitary_simulator'?
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