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feat(superconducting): port pi vs flux long distortions updates from CS_installations - #557

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feature/sc-17-pi-vs-flux-long-distortions
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feat(superconducting): port pi vs flux long distortions updates from CS_installations#557
paulQM wants to merge 2 commits into
mainfrom
feature/sc-17-pi-vs-flux-long-distortions

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@paulQM

@paulQM paulQM commented Jul 20, 2026

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Summary

  • Port CS_installations 19a_qubit_flux_long_distortion_qubitspec (node + calibration_utils) into qua-libs as an equivalent update to the existing node 17_pi_vs_flux_long_distortions.
  • Kept the qua-libs node name (17_pi_vs_flux_long_distortions) and package name (calibration_utils/pi_flux); no parallel CS-numbered file added.
  • Analysis upgraded to a global multi-exponential fit driven by n_exponentials (replacing the fitting_base_fractions peeling approach), with spectroscopy / Ramsey freq-vs-flux curve loaders, a freq_vs_flux_01_quad_term fallback, DP branch tracking for spectroscopy maps, and an expanded plotting suite.

Compatibility

  • Install-only telemetry code and sys.path.insert bootstrap removed
  • Node name kept as 17_pi_vs_flux_long_distortions
  • Package kept as calibration_utils/pi_flux (node import updated accordingly)
  • Import check passed (calibration_utils.pi_flux imports under uv)
  • Node file parses cleanly

Notes

  • No CS unit/simulation tests or artifacts exist for 19a, so none are included.
  • CS 19b (Ramsey variant) is out of scope for this PR.
  • CZ_calibrations/README.md table row for node 17 remains valid.

Test plan

  • Run node 17_pi_vs_flux_long_distortions against a QUAM state (simulate and/or hardware)
  • Verify exponential-filter state update path on a successful fit

Made with Cursor

paulQM and others added 2 commits July 20, 2026 13:18
…CS_installations

Port the CS_installations 19a_qubit_flux_long_distortion_qubitspec node and
its calibration_utils into qua-libs as an equivalent update to node
17_pi_vs_flux_long_distortions (pi_flux package), keeping the qua-libs node
name and package name.

- Global multi-exponential fit (n_exponentials) replacing start-fraction peeling
- Spectroscopy / Ramsey freq-vs-flux curve loaders with quad_term fallback
- DP branch tracking for spectroscopy maps and expanded plotting suite
- Install-only telemetry / sys.path bootstrap removed

Co-authored-by: Cursor <cursoragent@cursor.com>
…tortions

Co-authored-by: Cursor <cursoragent@cursor.com>
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