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Quantum Computing

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First retag.
Awarded 117 times.
Is there a way to implement Smolin's variant of Shor's algorithm?
Awarded Jul 19 at 16:04
(post deleted or otherwise unavailable)
Awarded Jun 14 at 8:33
How can one check if a given quantum channel is unitary?
Awarded May 7 at 12:55
Quasiprobability decomposition of the CZ-gate
Awarded Mar 6 at 18:32
Smallest qudit error correcting/detecting codes
Awarded Feb 20 at 17:40
Why are quantum states represented by Bloch or Q-Spheres?
Awarded Dec 27, 2023 at 12:20
Finding the eigenvalues of a qutrit state
Awarded Nov 21, 2023 at 11:42
(post deleted or otherwise unavailable)
Awarded Nov 16, 2023 at 22:40
What are "completely positive" and "CPTP" quantum maps?
Awarded Sep 21, 2023 at 6:45
Can a density operator be written equivalently as $\rho=\sum_i p_i|\psi_i〉\!\langle\psi_i|$ and $\rho=\sum_i\lambda_i|\psi_i\rangle\!\langle\psi_i|$?
Awarded Aug 30, 2023 at 14:06
How is a quantum error correcting code $C(E)=\langle\psi|E^\dagger E|\psi\rangle$ diagonalized?
Awarded Aug 24, 2023 at 10:57
In Deutsch–Jozsa algorithm, why one can safely ignore the last qubit of oracle output?
Awarded Aug 6, 2023 at 12:26
Can you distinguish between $|0\rangle, |1\rangle$, and $\frac{1}{\sqrt 2} (|0\rangle + |1\rangle)$?
Awarded May 27, 2023 at 16:27
How horizontal loops on the toric code are all undetectable?
Awarded May 17, 2023 at 18:05
(post deleted or otherwise unavailable)
Awarded Mar 29, 2023 at 16:35
How to specify custom gate set for the optimization in pytket?
Awarded Mar 16, 2023 at 16:30
Unable to make sense of the output of X gate
Awarded Feb 17, 2023 at 21:25
Is it known whether the Fermi-Hubbard ground state can be prepared efficiently or not?
Awarded Feb 3, 2023 at 14:16
Best free online application for making notes containing quantum computing math notation? [closed]
Awarded Jan 30, 2023 at 0:11
Given the following matrix representing a quantum gate, how do I implement it in Qiskit?
Awarded Jan 20, 2023 at 16:16
Solving linear systems over finite fields using Quantum Computation
Awarded Dec 2, 2022 at 8:26
Why does the bit flip channel produce a uniform contraction of $1-2p$?
Awarded Oct 29, 2022 at 16:07
How to implement parametric iSWAP gate in Qiskit?
Awarded Sep 22, 2022 at 4:47
CNOT gate an elementary example of a single qubit quantum operation
Awarded Sep 11, 2022 at 13:57
Does anybody know what a low-degree Markov field is?
Awarded Aug 22, 2022 at 18:08
Partial Measurement in AWS Braket
Awarded Aug 13, 2022 at 7:33
Quantum gate count minimization
Awarded Aug 6, 2022 at 19:35
AttributeError: module 'cirq' has no attribute 'google'
Awarded Aug 3, 2022 at 11:32
(post deleted or otherwise unavailable)
Awarded Jul 12, 2022 at 23:40
How to determine with local measurements which Bell state we have?
Awarded Jul 7, 2022 at 9:17
What is the relationship between the number of shots and the performance of a quantum agent?
Awarded Jun 28, 2022 at 20:15
How to implement subplots (several blochsphere plots) using qiskit?
Awarded Jun 20, 2022 at 19:32
(post deleted or otherwise unavailable)
Awarded May 28, 2022 at 12:10
Expected Minimum Clique Coverage?
Awarded May 20, 2022 at 21:20
Q# Grover Tutorial Problem
Awarded May 6, 2022 at 21:27
In the Bernstein-Vazirani circuit, if the secret is all 0s, would the oracle just be nothing?
Awarded May 5, 2022 at 6:21
Is there a way to rotate an unknown state towards another known state?
Awarded Apr 7, 2022 at 11:21
(post deleted or otherwise unavailable)
Awarded Mar 17, 2022 at 10:55
How do Qiskit simulators generally work? [duplicate]
Awarded Mar 15, 2022 at 17:12
What are some references discussing the generation of quantum circuits with genetic algorithms?
Awarded Mar 8, 2022 at 15:21
E91 probability of wrong conclusion of eavesdropper
Awarded Mar 3, 2022 at 7:35
Results are missing for Qiskit runtime program 'sample-expval'
Awarded Mar 1, 2022 at 5:41
(post deleted or otherwise unavailable)
Awarded Dec 21, 2021 at 6:08
Do quantum gates rotate a qubit around the Bloch sphere, or do quantum gates rotate the Bloch sphere around a qubit?
Awarded Dec 11, 2021 at 13:57
Decomposition of the multi-controlled gate in tensorflow quantum
Awarded Sep 22, 2021 at 19:57
What is the "quantum phase" of a quantum state?
Awarded Jul 19, 2021 at 14:31
Prove that for a cq-state $\rho_{XE}$, $H_\infty(X|E) \ge H_\infty(X) - \log|E|$
Awarded Jul 6, 2021 at 11:06
'Geometric difference' in Google's 'Power of data in quantum machine learning' paper
Awarded Jun 16, 2021 at 18:42
(post deleted or otherwise unavailable)
Awarded Jun 10, 2021 at 14:19
Why can't quantum computation replace classical computation?
Awarded Jun 9, 2021 at 14:51
Apply readout error mitigation to mid-circuit measurement
Awarded Jun 1, 2021 at 10:21
In (O'Brien et al. 2004), why is the target qubit not affected when the control is $\vert 0\rangle$?
Awarded May 27, 2021 at 13:03
Pulse waveform for 2-qubit circuit
Awarded May 7, 2021 at 16:40
What algorithm does Qiskit use to decompose arbitrary n-qubit unitaries on Rotations + CNOT?
Awarded Apr 26, 2021 at 7:38
Calculating length of code words in quantum information(compression)
Awarded Apr 20, 2021 at 9:57
Best way to compute $\langle a|B|a \rangle$ in Cirq, where a is a state obtained running circuit A. And B is a different Quantum Circuit
Awarded Mar 15, 2021 at 11:33
What is a flying qubit?
Awarded Feb 3, 2021 at 15:36
How to interpret complex probability of superposition state?
Awarded Dec 16, 2020 at 11:58
What is a "repeat until success quantum circuit" in quantum neural networks?
Awarded Nov 26, 2020 at 11:08
(post deleted or otherwise unavailable)
Awarded Nov 26, 2020 at 9:07
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