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QArena · Measurement and tomography Submit

Fewest Pauli measurement settings that cover every 3- or 4-qubit observable

Estimating every low-weight Pauli observable of a many-qubit device (overlapping tomography) needs product measurement settings that cover every pattern on every small set of qubits, and each setting is a separate device configuration.

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Instance: Qubits and strength (size of the qubit sets to cover)

Submitting to Pauli measurement settings, 5 qubits, strength 4 (debug)

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Check your file first

  1. Download the verifier bundle and extract it. It contains the verifier, every instance file and an accepted example.

    Download verifier bundle

  2. Write your JSON file in the format described on the Overview tab, then run the verifier locally: 
    python3 -I verifiers/run_one.py pcover pc4-n5 my_file.json

Submit with the API

Create a token on your account page, then:

curl -sS -X POST -H "Authorization: Bearer $QARENA_TOKEN" --data-binary @my_file.json \
     "https://qarena.ai/api/v0/submit/pcover/pc4-n5?visibility=private"

Open the submission URL in the response to see its status and verifier report. Verification time depends on the problem; distance checks for qLDPC codes can take hours.