Quantum Computing

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First question with score of 1 or more.
Awarded 3658 times.
(post deleted or otherwise unavailable)
Awarded Nov 8, 2022 at 14:02
Universality : Working with one qubit
Awarded Nov 7, 2022 at 22:36
Use state vector simulator with TensorCircuit
Awarded Nov 7, 2022 at 16:06
How to initialize a function in Qiskit with 3 qubit? [closed]
Awarded Nov 7, 2022 at 16:06
Not understanding gates being generated by MCX in "recursion" mode
Awarded Nov 7, 2022 at 7:31
Why does the $Z$ gate transform $|1\rangle$ to $-|1\rangle$ but fixes $|0\rangle$?
Awarded Nov 7, 2022 at 7:31
How to construct common classical gates with CNOT circuit?
Awarded Nov 7, 2022 at 7:31
How to create superposition of all bitstrings with exactly two ones on 4 qubits?
Awarded Nov 7, 2022 at 0:32
Matrix representation for biproduct mixed states
Awarded Nov 6, 2022 at 15:25
Can separable, but non-valid "states", be used as a resource to generate entanglement?
Awarded Nov 6, 2022 at 14:27
Quantum In-place Modular Addition Circuit
Awarded Nov 6, 2022 at 1:36
(post deleted or otherwise unavailable)
Awarded Nov 4, 2022 at 17:58
(post deleted or otherwise unavailable)
Awarded Nov 4, 2022 at 11:17
Is there a way to know whether entanglement will happen before doing an operation?
Awarded Nov 4, 2022 at 10:31
What is the quantum relative entropy between pure states?
Awarded Nov 4, 2022 at 10:03
How to transform a quantum gate into its matrix representation?
Awarded Nov 4, 2022 at 8:03
Why are quantum systems fabricated to be anharmonic?
Awarded Nov 4, 2022 at 3:27
Nielsen & Chuang, 10th anniversary edition, page 85, equation 2.92
Awarded Nov 2, 2022 at 21:51
Qiskit Transpiler function - Why does Toffoli + Hadamard not work as a Basis Gate set?
Awarded Nov 2, 2022 at 11:40
Does a noiseless quantum channel violate no-cloning theorem?
Awarded Nov 1, 2022 at 12:49
Pennylane: take qml.state of one function and use it as the initialization for another
Awarded Nov 1, 2022 at 2:40
How to get measurement result one by one in qiskit? [duplicate]
Awarded Oct 31, 2022 at 10:03
Using Stim and PyMatching for circuit level noise simulation
Awarded Oct 31, 2022 at 9:32
(post deleted or otherwise unavailable)
Awarded Oct 30, 2022 at 14:04
How to perform a basis change on a 2x2 density operator?
Awarded Oct 29, 2022 at 20:26
When do qubits get entangled?
Awarded Oct 29, 2022 at 20:26
How to convert classical machine learning dataset to quantum dataset?
Awarded Oct 29, 2022 at 15:56
How to you initialize a qubit into a magic state in IBM Quantum composer
Awarded Oct 29, 2022 at 5:56
PyMatching.Matching.decode() returns incorrectly sized array
Awarded Oct 28, 2022 at 22:03
Plot circuit within TensorCircuit
Awarded Oct 28, 2022 at 10:43
Prove that uniformly random states have moments ${\bf E}_\psi|\langle x|\psi\rangle|^{2t}\sim1/\binom d t$
Awarded Oct 28, 2022 at 2:18
How are measurements done exactly on IBM cloud computers?
Awarded Oct 28, 2022 at 2:18
Arbitrary Encoding - how 3 qubits can encode 12 distinct features?
Awarded Oct 27, 2022 at 11:51
How can we compute the gradient in a Quantum RNN?
Awarded Oct 27, 2022 at 6:28
Symbolic library for qubit states
Awarded Oct 27, 2022 at 5:17
Two Qudit custom gate error in Cirq
Awarded Oct 26, 2022 at 18:56
Can STIM be used to numerically find all the stabilisers of a model?
Awarded Oct 25, 2022 at 15:02
How to factorize a big number using Shor's algorithm with Qiskit
Awarded Oct 25, 2022 at 15:02
Why is the triangle finding problem important?
Awarded Oct 24, 2022 at 18:41
Seeking an explanation of the Hadamard transformation on a 2-qubit system
Awarded Oct 24, 2022 at 6:49
How to compute the maximum possible coherence of a two-particle Bell state?
Awarded Oct 22, 2022 at 18:20
(post deleted or otherwise unavailable)
Awarded Oct 22, 2022 at 16:49
Why do black box separations imply oracle separations?
Awarded Oct 22, 2022 at 12:04
Creating a plot of groundstate energy (for a set distance) against noise
Awarded Oct 21, 2022 at 6:21
Unitary operations in a Quantum Neural Network
Awarded Oct 19, 2022 at 20:37
Solving TSP on real hardware
Awarded Oct 19, 2022 at 20:31
Qubit reset using Grover iteration
Awarded Oct 17, 2022 at 21:10
How to upload a program in Qiskit runtime
Awarded Oct 17, 2022 at 15:19
AWS braket compiler simulation
Awarded Oct 16, 2022 at 18:36
Is this state a superposition in the standard basis?
Awarded Oct 15, 2022 at 7:58
Simulating light absorption in Photosynthesis through Quantum computing
Awarded Oct 15, 2022 at 7:58
Does entanglement only exist between pairs of qubits?
Awarded Oct 15, 2022 at 7:40
Publicly available samples for quantum circuits and/or simulators
Awarded Oct 13, 2022 at 8:04
Could "no cloning" be used as a defence for quantum encryption?
Awarded Oct 11, 2022 at 11:41
(post deleted or otherwise unavailable)
Awarded Oct 11, 2022 at 5:21
Is it possible to generate a deterministic state after measurement after using QASM simulator in Qiskit?
Awarded Oct 10, 2022 at 6:32
How to calculate the meauring probabilities of quantum states $\vert 0\rangle$ and $\vert 1 \rangle$ in $R_x$ gate?
Awarded Oct 8, 2022 at 17:05
Meaning of 'O_i' and 'Δ_i' terms in PulseBackend Hamiltonians
Awarded Oct 7, 2022 at 23:48
If measurement collapses the information and we lose information, what's the point of using a qubit?
Awarded Oct 6, 2022 at 21:28
Retrieving jobs of an expired access device
Awarded Oct 6, 2022 at 5:48
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