Questions tagged [qubit-mapping]

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Copying |0⟩, |1⟩ Qubits will break the no-cloning theorem?

I am trying to create a bit string of |0⟩'s and |1⟩'s in order to create an array. Would this still break the no-cloning theorem since we do know their state: they are |0⟩'s and |1⟩'s. If possible, ...
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1 vote
0 answers
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Question about performing VQE with an embedded Hamiltonian

Say I have a physical Hamiltonian $\mathcal{H}$ which is $D$-dimensional and I encode it into a larger matrix $M$ which is $\Delta$-dimensional. In the cases I care about $\Delta$ is strictly greater ...
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0 votes
1 answer
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General Ehrenfest Theorem applied to N-qubit system operator

Please advise if the following short calculation of the derivative of the expectation value of an all spin Pauli-$\hat{Y}$ operator (acting on a $N$-qubit system) is consistent: The general Ehrenfest ...
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1 answer
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Time execution on real quantum backend higher than classical kmeans

I am running some experiments on a real quantum backend of IBM with qmeans approach. My dataset has 2 features (2 dimensions). I observe higher execution time on the Quantum Calculate Distance routine ...
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3 votes
1 answer
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Is it possible to build a "Quantum Karnaugh Map"?

Is it possible to build something similar to the Karnaugh Map but instead of classical bits input and output with qubits input and output?
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2 votes
1 answer
236 views

Coupling maps in quantum computation

Perhaps a bit naive question from my side, but I could not find any satisfactory answer elsewhere: What exactly are the coupling maps in quantum computation and, more particularly, how do those maps ...
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1 answer
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How to re-order logical qubit location into desired state?

Now, I'm studying about qubit mapping. When the mapping is done, the logical qubit will be randomly mapped to physical qubit. But I want to move the logical qubit location into desired state. For ...
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1 vote
1 answer
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How to re-ordering physical qubit location into desired one?

Suppose original quantum circuit have 4 qubits and some quantum operation. Also suppose the result of original quantum circuit state is '1100'. Then apply qubit mapping then mapping state is like ...
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2 answers
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How to assemble two quantum circuits whose qubit mapping states are different each other?

I uploaded similar question before, but the answer was not I want. I think I should show you in more detail about my question. I use SABRE algorithm which can do qubit mapping for executing quantum ...
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