boulderopalscaleup.experiments.AllXY

class boulderopalscaleup.experiments.AllXY(*, transmon, recycle_delay_ns=200000, shot_count=500, preset=None, circuits=None, expected_values=None, use_sx_only=False, measure_waveform=None, update='auto')

AllXY experiment class for running the AllXY calibration protocol on a transmon qubit.

This experiment applies a sequence of gate pairs to the specified transmon and measures the resulting state. It is commonly used to diagnose and calibrate single-qubit gate errors.

When circuits is not provided, the standard 21-element AllXY sequence is used. You may supply arbitrary low-depth circuits (as lists of gate names) together with their expected_values (P(∣1⟩)P(|1\rangle) for each circuit) to repurpose this experiment as a general gate-sequence diagnostic.

Alternatively, set preset="clifford_inverse" to run all 24 single-qubit Cliffords each followed by their inverse, verifying that the population returns to ∣0⟩|0\rangle.

Variables

  • transmon (str) – Identifier for the transmon qubit to be calibrated.
  • recycle_delay_ns (int) – Delay time (in ns) between shots to allow the qubit to relax. Default is 200,000 ns.
  • shot_count (int) – Number of measurement shots per circuit. Default is 500.
  • preset ( "clifford_inverse" or None , optional) – Predefined circuit set. When specified, circuits and expected_values are ignored. "clifford_inverse" runs Ci⋅Ci−1C_i \cdot C_i^{-1} for all 24 Cliffords.
  • circuits (list [ list [ str ] ] , optional) – Each inner list is a sequence of gate names (e.g. [“sx”, “sy”]). Defaults to the standard AllXY 21-element sequence.
  • expected_values (list [ float ] , optional) – Expected P(∣1⟩)P(|1\rangle) for each circuit. Must have the same length as circuits. Defaults to the standard AllXY expectations.
  • use_sx_only (bool , optional) – When True, expands all x and y gates into sx,sx and sy,sy pairs and expands -sx/-sy via z,sx/sy,z. This exercises only the sx/sy defcals without relying on x/y calibration. Default is False.
  • measure_waveform (ConstantWaveform or None , optional) – The waveform to use for the measurement pulse. Defaults to the measurement defcal.
  • update ( "auto" or "off" or "prompt" , optional) – How the device should be updated after an experiment run. Defaults to auto.

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