How to get Stim Dem for non-deterministic detectors/observables?

How to get Stim Dem for non-deterministic detectors/observables? Ask Question Asked today Modified today Viewed 6 times 0 I have this unphysical circuit circuit = stim.Circuit(''' Y_ERROR(.1) 0 MPP X0 MPP Z0 DETECTOR rec[-2] DETECTOR rec[-1] OBSERVABLE_INCLUDE(0) rec[-2] ''') I wish to get stim.DetectorErrorModel(''' error(.1) D0 D1 L0 ''') I know stim.Circuit.detector_error_model forbid such non-deterministic detectors/observables, but stim.FlipSimulator can sample the flips of them. How can I construct a Dem for them, e.g., by doing the following with existing stim utilities? Enumerate all the error mechanisms Calculate the flip of detectors/observables by each mechanism Merge mechanisms with identical flips and merge their probabilities error-correctionstim Share Improve this question Follow edited 2 hours ago asked 2 hours ago Rui Chao 1 New contributor Add a comment 1 Answer Sorted by: Highest score (default) Date modified (newest first) Date created (oldest first) 0 Use stim.Circuit.detector_error_model(allow_gauge_detectors=True) to allow non-deterministic detectors while producing a dem. It will insert 50% probability error mechanisms to represent the gauges. Beware that most of stim does not support gauges. Basically the only place it works is the conversion into a detector error model. Share Improve this answer Follow answered 15 mins ago Craig Gidney 51.4k1 1 gold badge 53 53 silver badges 133 133 bronze badges Add a comment 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. Ask question Explore related questions error-correctionstim See similar questions with these tags. The Overflow Blog Who needs VCs when you have friends like these? 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