Quantum Computing

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 Student
First question with score of 1 or more.
Awarded 3437 times.
What is the difference between shot and iteration of the quantum circuit?
Awarded 1 hour ago
A measure of entanglement created by a unitary operation
Awarded 1 hour ago
Why can't we do pure state tomography using interference with a known reference state?
Awarded 18 hours ago
Generalization of representing SU(2) as quaternions
Awarded 23 hours ago
Finding the "dual" basis of an overcomplete basis for Quantum State Tomography
Awarded yesterday
Why $\sqrt{\rho} = P \sqrt{\rho}$ in the proof of quantum error correction conditions in Nielsen & Chuang?
Awarded yesterday
Mutual information of shared state is larger than expectation values
Awarded 2 days ago
Bug in stim HERALDED_PAULI_CHANNEL_1?
Awarded 2 days ago
Role of eavesdroppers in B92 of phase modulation
Awarded Nov 29 at 6:25
Decomposition of a $4 \times 4$ unitary matrix
Awarded Nov 29 at 6:18
Effect of error correction gates in QCNN
Awarded Nov 29 at 6:18
Underlying Hamiltonians and pulse level controls of different commercially available quantum computers
Awarded Nov 28 at 14:45
Problem with eigenvalue evaluation algorithm application on matrix $U$
Awarded Nov 28 at 13:33
Confirmation of whether it has been reached or not [closed]
Awarded Nov 28 at 2:20
Outputing classification probability from the Qiskit VQC
Awarded Nov 26 at 19:57
Measuring a single-qubit PauliZ using Qiskit's EstimatorQNN
Awarded Nov 26 at 7:34
How to convert a partially entangled state into maximally entangled using SLOCC
Awarded Nov 24 at 11:51
Zeeman eigenstates and QuTiP Bloch sphere
Awarded Nov 24 at 1:04
Type I fusion Gate
Awarded Nov 23 at 3:57
Estimating $\pi$ using Quantum Computing - why does it work only in simulator?
Awarded Nov 21 at 23:01
How to find density matrix of 3 qubit W state?
Awarded Nov 21 at 12:06
Adding measurement circuits to the singlet state circuit and want to create single circuit
Awarded Nov 21 at 9:19
Question about Nielson & Chuang Problem 9.2
Awarded Nov 21 at 8:36
I would like to know the textbook/paper on hamiltonian for rf-SQUID
Awarded Nov 21 at 8:36
How would you draw the phase-estimation circuit for the eigenvalues of $U = \mathrm{diag}(1,1,\exp(\pi i/4),\exp(\pi i/8)) $?
Awarded Nov 21 at 1:57
Is it possible to find out the number of timesteps taken by the mesolve/sesolve method in QuTip?
Awarded Nov 20 at 18:22
Hadamard Gate on Cluster States
Awarded Nov 20 at 12:31
(post deleted or otherwise unavailable)
Awarded Nov 20 at 8:20
Conditioned gates with multiple classical bits
Awarded Nov 19 at 20:16
qiskit QAOA on Aer GPU giving errors
Awarded Nov 19 at 10:41
The hidden subgroup problem for finite Abelian groups when $|G| \neq 2^n$
Awarded Nov 17 at 18:49
How to explain the output as $|-\rangle$
Awarded Nov 17 at 18:22
How do I apply Amplitude Amplification for following state?
Awarded Nov 17 at 18:22
Eigenvalues of a unitary U that implements a periodic function [closed]
Awarded Nov 17 at 7:01
Relationship between the eigenvalues of a Laplacian matrix and the eigenvalues of the Hamiltonian of a graph for Max-Cut
Awarded Nov 16 at 11:47
quantum generalisation of random variables
Awarded Nov 15 at 16:04
How do I bound parameters in RawFeatureVector with ParameterizedInitialize in Qiskit?
Awarded Nov 14 at 8:47
How to implement this circuit either using Jupiter notbook or qiskit
Awarded Nov 14 at 8:47
Ekert protocol understanding - correlations/anti-correlations of measurements by Alice and Bob
Awarded Nov 14 at 8:43
Why does SQcircuits give 0 as the quasiparticle decoherence rates for a transmon qubit?
Awarded Nov 14 at 8:43
getting error while simulating LiH using VQE
Awarded Nov 14 at 8:43
Bound on scaling mixed quantum-classical computer designs
Awarded Nov 14 at 8:43
Can't load account on IBM's qiskit
Awarded Nov 14 at 8:43
How is this step performed in Deutsch's algorithm?
Awarded Nov 14 at 4:46
Are these gate sets proven to be not universal?
Awarded Nov 13 at 20:42
How to combine measurement of each term in Hamiltonian $H = aH_1 + bH_2$ to get final results?
Awarded Nov 13 at 5:47
Quantum volume calculation: what is the significance of the value 2/3 for probability to observe a heavy output in the definition of achievable depth?
Awarded Nov 12 at 13:30
Kolmogorov dilations of positive definite kernels and Donsker's Delta
Awarded Nov 12 at 13:25
How to do modular exponentiation in qiskit with gates?
Awarded Nov 11 at 23:25
MWPM / Union Find Implementations for 3D Toric Code
Awarded Nov 11 at 23:25
Can transformations of qubits in quantum computing be carried out instead by transformations of the measurement instrument?
Awarded Nov 11 at 23:25
What is the difference between quantum teleportation and quantum entanglement with dense coding?
Awarded Nov 11 at 23:25
How to update angles
Awarded Nov 10 at 6:58
What are the logical 0 & 1 states for the 17 qubit (9 data qubit) surface code?
Awarded Nov 10 at 6:58
Implementation of Quantum Random Projection
Awarded Nov 8 at 22:21
Inverse Quantum Fourier Transformation
Awarded Nov 8 at 22:21
Double Slit Experiment
Awarded Nov 7 at 22:15
Phase shift on qiskit quantum teleportation simulation
Awarded Nov 7 at 22:15
Creating entangled states via Rydberg blockade
Awarded Nov 7 at 19:21
How to create a maximally entangled state of two 4-level quantum mechanical systems?
Awarded Nov 7 at 8:42
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