Efficient representation of sparse Pauli error #205
Replies: 2 comments · 3 replies
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@refraction-ray any idea? 🤔 |
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What you mean is Kraus operator like However, if jit is enabled, I cannot think of an efficient way to implement this for now. The essential problem is the same as applying two-qubit gates on random indices while maintaining jit, see related discussion: #171 (comment) |
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Ah, actually if the two-qubit operators are all local and Pauli, then an efficient jittable MPO representaion could exist. It is more like this case: #171 (comment). Therefore, you can run jittable efficient simulation with Monte Carlo trajectory approach. |
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Actually I don’t necessarily need to keep it jittable for now. So there is no way of doing this with a DMCircuit? My problem at the moment is that when going beyond 6 qubits, the list of Kraus of operators is so long that even just applying the noise with |
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Oh no wait, the solution is using MPO tensors right? Let me try it out!! |
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Hi (again),
Is there a way to efficiently represent/implement a sparse Pauli channel? For instance, in Qiskit I could use the
pauli_errorfunction with a Pauli String representation as input.This "efficient" representation is particularly useful, because I am considering up to weight-2 Pauli strings, so for a high number of qubits$4^n$ vector would be useful. I am aware of the general_depolarizing_channel in TC, but this would imply running into the latter problem.
nnot having to save theAny idea?
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