stim & pymatching - rotated planar codes with Pauli channel noise

stim & pymatching - rotated planar codes with Pauli channel noise Ask Question Asked 4 days ago Modified 3 days ago Viewed 39 times 1 I initialized the circuit for rotated planar codes with Pauli channel noise and I wanted to use PyMatching to predict the logical error probability per round. When I used from_stim_circuit_file, there was a ValueError raised Encountered the operation PAULI_CHANNEL_2 during error analysis, but this operation requires the `approximate_disjoint_errors` option to be enabled. If you're calling from python, using stim.Circuit.detector_error_model, you need to add the argument approximate_disjoint_errors=True. If you're calling from the command line, you need to specify --approximate_disjoint_errors. So I followed and added approximate_disjoint_errors=True in my detector error model then used from_detector_error_model_file. However, when I try to fit the logical error probability per round, the fit does not match known results seen in literature (say, 2x the result from the literature). From this answer we know that approximate_disjoint_errors=True does affect accuracy, is there a way to bypass the need to set approximate_disjoint_errors=True? programmingerror-correctionstimpymatching Share Improve this question Follow edited Jul 20 at 19:41 asked Jul 20 at 10:40 user42143 112 2 bronze badges New contributor Add a comment Know someone who can answer? Share a link to this question via email, Twitter, or Facebook. Your Answer Sign up or log in Sign up using Google Sign up using Email and Password Post as a guest Name Email Required, but never shown Post Your Answer By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy. Start asking to get answers Find the answer to your question by asking. 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