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Quantum Computing

Questions tagged [programming]

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For any questions whose answer is expected to require code or programming notions. For questions about a specific framework (e.g. qiskit or cirq) please also include a more specific tag. If your question is about installation or any specific framework error, consider posting it in https://stackoverflow.com/ instead.

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1answer
89views

Sorry for the vague title, what I’m really asking is: when writing a compiler for a quantum DSL, many languages have chosen an imperative or functional host language. Few, if any, have chosen a purely ...
3votes
1answer
143views

I want to convert a PySCF wavefunction in terms of CIstrings to a representation of a qubit state after Jordan-Wigner transformation of the Hamiltonian.Qiskit-nature keeps the molecular ordering of ...
0votes
1answer
63views

In this paper, the authors provide a method for constructing qLDPC CSS-T codes. They provide example generator matrices for the binary linear codes $C_1$ and $C_2$ such that $Q(C_1, C_2)$ is a CSS-T ...
0votes
0answers
56views

Im making a quantum SVM with the quantum kernel using qiskit. Right now, im trying to implement the noise model using the fake provider....
1vote
1answer
52views

I'm trying to simulate the 1D Ising Model with open periodic boundary conditions using the 2nd order Trotter product for 5 spins sites with J = -1.2 and h =-0.7.$$ H_{Ising} = -J\sum_{i=0}^{spinsites ...
4votes
2answers
156views

I have been using Stim for a while now. Still, I find it particularly difficult to add non-trivial detectors in Stim (such as the in-place access of the Y-Basis Gidney introduced), and I’m wondering ...
0votes
1answer
83views

In the paper "Grand Unification of Quantum Algorithms", the following operator is introduced in eqn. (27) of said paper:$$\hat{\Pi }_{\phi } = e^{i\phi (2\hat{\Pi }-\hat{I})}$$The operator ...
1vote
1answer
127views

I'm working with Stim to analyze error probabilities in quantum error correction circuits, and I'm encountering a confusing aspect regarding the DetectorErrorModel (DEM) output.Consider Steane code ...
2votes
1answer
63views

I’m trying to connect to IBM Quantum backends using Qiskit Runtime Service.Here’s my code (based on IBM Cloud setup guide):...
2votes
0answers
51views

I have two problems with the QiskitIntegerComparator: I apply a comparison of a quantum register content with a classical integer in Qiskit and look at the ...
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4votes
1answer
85views

Under the IBM Qiskit v2.X Developer Certification webpage, there are a few courses and resources listed (e.g. the 5 course series from IBM). However, do they fully cover the content tested in the ...
2votes
2answers
66views

I want to convert a Choi matrix into a corresponding set of Kraus operators.I start out from a numpy array representing the Choi matrix. I convert it to a QuTip Qobj object and then convert it to ...
2votes
2answers
408views

In digital computer, 0 and 1 is the basic unit of information in memory, that gets processed.Digital computer(having transistors) uses Boolean algebra to process this basic unit of information, where ...
1vote
0answers
85views

I am trying to install the Chromobius package with the implementation of the Mobius decoder for colour codes. However, I am getting an error in the form of "ERROR: Failed building wheel for ...
0votes
1answer
106views

I want to perform constant-quantum modular addition: $|x\rangle \mapsto |x + K \bmod R \rangle$ where the input $x$ can be greater than $R$. E.g. For $K=1, R=10$ the input $|11 \rangle$ should map to $...

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