Quantum Computing

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Answer a question more than 60 days later with score of 5 or more. This badge can be awarded multiple times.
Awarded 72 times.
Partial Cyclic Permutation with only Toffoli and CNOT gates?
Awarded Nov 30 at 16:42
When is the square root of a Clifford gate a Clifford gate?
Awarded Nov 23 at 22:05
Purity of mixed states as a function of radial distance from origin of Bloch ball
Awarded Nov 20 at 18:37
Has Blockchain made Quantum Money obsolete?
Awarded Nov 12 at 23:51
What is meant with "shot" in quantum computation?
Awarded Oct 18 at 19:01
Continued fractions with Shor's algorithm: which convergent?
Awarded Oct 13 at 17:20
Can we combine the square roots inside the definition of the fidelity?
Awarded Oct 4 at 15:08
Topological Circuit Simulator
Awarded Jul 18 at 11:36
Why isn't $Ry(\pi/2)$ gate equivalent to Hadamard gate?
Awarded Jul 11 at 5:57
Threshold estimate for 7-qubit code with flag-qubit syndrome extraction
Awarded Jul 2 at 21:33
Is there a lower bound on the average diamond norm of two uniformly random unitaries U1 and U1 of dimension D that are sampled from haar measure?
Awarded Apr 12 at 20:06
What is a Bacon-Shor code and what is its significance?
Awarded Mar 27 at 5:15
Currently, what are the best structured courses available online on quantum computing?
Awarded Mar 21 at 1:42
How to implement controlled multiqubit gates in qiskit?
Awarded Mar 19 at 7:11
What is the quantum circuit equivalent of a (delayed choice) quantum eraser?
Awarded Jan 31 at 7:26
Arbitrary powers of NOT and SWAP
Awarded Jan 19 at 18:33
Review paper on depth, qubits and $T$ gates number on Clifford+T decomposition for various "typical" algorithms
Awarded Dec 10, 2022 at 4:08
Why are POVMs useful? Are they just an axiomatic way to define measurement?
Awarded Nov 22, 2022 at 9:41
New Hybrid-HHL algorithm vs VQLS
Awarded Nov 20, 2022 at 14:33
How to find the operator sum representation of the depolarizing channel?
Awarded Nov 13, 2022 at 9:27
Is there any online Bloch sphere simulator?
Awarded Nov 10, 2022 at 15:40
How do I show that a two-qubit state is an entangled state?
Awarded Nov 6, 2022 at 2:05
How is the surface of a Bloch sphere a Hilbert space?
Awarded Sep 29, 2022 at 10:42
Is there a simple, formulaic way to construct a modular exponentiation circuit?
Awarded Sep 2, 2022 at 12:40
What precisely is the quantum extended Church-Turing thesis?
Awarded Aug 30, 2022 at 1:27
What precisely is the quantum extended Church-Turing thesis?
Awarded Aug 30, 2022 at 1:27
Review paper on depth, qubits and $T$ gates number on Clifford+T decomposition for various "typical" algorithms
Awarded Aug 9, 2022 at 12:21
What is a Bacon-Shor code and what is its significance?
Awarded Jul 25, 2022 at 22:43
How to implement gate error mitigation in Qiskit?
Awarded May 17, 2022 at 13:34
What is the "Stinespring Dilation"?
Awarded Apr 14, 2022 at 17:02
What is the status of confirming the existence of anyons?
Awarded Mar 25, 2022 at 11:17
Can you make anyons in 3 dimensions using rings?
Awarded Mar 24, 2022 at 20:49
Is Connes' Embedding Problem akin to the word problem for finitely presented groups?
Awarded Feb 24, 2022 at 15:35
IBM Q devices scheduling of gates with different durations
Awarded Feb 9, 2022 at 2:55
Expected repetitions of the quantum part of Shor's algorithm
Awarded Jan 29, 2022 at 13:11
Quantum circuit for computing fidelity
Awarded Jan 3, 2022 at 9:42
Number of Qubits Required for Simulation of Caffeine and Penicillin Molecules
Awarded Nov 8, 2021 at 18:50
Currently, what are the best structured courses available online on quantum computing?
Awarded Oct 28, 2021 at 12:16
What is the meaning of the state $|1\rangle-|1\rangle$?
Awarded Sep 30, 2021 at 6:07
Quantum machine learning after Ewin Tang
Awarded Sep 23, 2021 at 16:26
What exactly is the relation between the Holevo quantity and the mutual information?
Awarded Jul 10, 2021 at 23:31
How close or far apart are the distributions generated by two Haar random states?
Awarded Jun 29, 2021 at 10:12
Grover algorithm for a database search: where is the quantum advantage?
Awarded Jun 28, 2021 at 1:40
Are inseparable states with positive partial transpose nonlocal?
Awarded Jun 14, 2021 at 21:07
What is the difference between superpositions and mixed states?
Awarded Jun 1, 2021 at 19:07
Circuit construction for Hamiltonian simulation
Awarded May 16, 2021 at 7:57
Why attenuator and not filters for QC driving line
Awarded Mar 2, 2021 at 12:50
Is there a Hamiltonian simulation technique implemented somewhere?
Awarded Feb 10, 2021 at 5:25
How to prepare mixed states on a quantum computer?
Awarded Jan 6, 2021 at 17:22
Academic journals dedicated to quantum algorithms
Awarded Oct 22, 2020 at 16:51
Passive improving of nanodiamond surfaces for NV centers?
Awarded Sep 4, 2020 at 9:34
Is there any company that backs and implements diamond vacancy quantum computers?
Awarded Sep 2, 2020 at 15:00
How would a quantum computer be used to solve Partial Differential Equations?
Awarded Jul 21, 2020 at 14:57
Is there a layman's explanation for why Grover's algorithm works?
Awarded May 8, 2020 at 8:35
Introductory material for quantum machine learning
Awarded May 3, 2020 at 16:32
Why is the efficiency of Ekert 91 Protocol 25%?
Awarded Apr 27, 2020 at 20:26
Circuit construction for Hamiltonian simulation
Awarded Apr 16, 2020 at 22:05
Are there any organised resources available from where I can begin my quantum computing studies?
Awarded Mar 27, 2020 at 21:50
How do I build a gate from a matrix on Qiskit?
Awarded Jan 21, 2020 at 17:35
Explicit Lieb-Robinson Velocity Bounds
Awarded Jan 2, 2020 at 16:15
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