add stim.Circuit.without_detectors() and shortest graphlike error crumble output

[Dripto]

Two quick feature ideas from @mmcewen-g and I:

1. stim.Circuit.without_detectors(), in case you want to strip them (for crumble or whatever else). Python snippet:

det_free_circuit = stim.Circuit()

for instruction in circuit:
    if instruction.name == 'DETECTOR':
        continue
    else:
        det_free_circuit.append(instruction)

2. shortest graphlike error -> crumble
   It would be really cool if you could call shortest_graphlike_error(canonicalize_circuit_errors=True) and have it output a crumble link that would have that error marked.

[Strilanc]

Should without_detectors keep observables?

It's pretty fast to write a loop that strips the detectors out of a circuit, so I'm not sure it's a huge gain over "there's a python API for you to do stuff".

Having to_crumble_url take a list of explained errors or dem errors is interesting.

[ghost]

Without_detector may be better as a flag on exporting to crumble url, bc that's the use case haha

…

On Tue, Jul 30, 2024, 1:40 PM Craig Gidney ***@***.***> wrote: Should without_detectors keep observables? It's pretty fast to write a loop that strips the detectors out of a circuit, so I'm not sure it's a huge gain over "there's a python API for you to do stuff". Having to_crumble_url take a list of explained errors or dem errors is interesting. — Reply to this email directly, view it on GitHub <#806 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AIPOPF7YSVN6ZL3MEA37J7LZO724NAVCNFSM6AAAAABLXBHYSWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDENJZGE3TANRTHE> . You are receiving this because you were mentioned.Message ID: ***@***.***>

[Strilanc]

Why do you want to remove the detectors? What is it solving? I have good guesses but I want to know.

[Dripto]

just because it makes crumble too slow

[Strilanc]

That was my first guess.

I think it might make more sense to solve it by making crumble fast. It is currently reparsing the circuit and recomputing all detecting regions everywhere in the circuit every time it draws a frame, and doing that in javascript instead of webassembly.