Dresden 2026 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 22: Superconductivity – Poster I

TT 22.12: Poster

Montag, 9. März 2026, 18:00–20:00, P1

Tuneup Protocol for Superconducting Qubits — •Paul Kugler¹, Nicolas Gosling¹, Masum Uddin², Asen Georgiev³, Li-Wei Chang³, Shroya Vaidya², Hiresh Jadoenathmissier⁴, Mahmut Çetin⁴, Philipp Lenhard¹, Nicolas Zapata¹, Lukas Scheller⁵, Robert Gartmann⁵, Wang N. Wong², Manognya Acharya², Tobias Lindström², Mark Bieler³, Sebastian de Graaf², Lukas Grünhaupt³, and Ioan Pop^1,6,7 — ¹IQMT, KIT, Karslruhe — ²NPL, Teddington, United Kingdom — ³PTB, Braunschweig — ⁴Orange Quantum Systems, Delft, The Netherlands — ⁵IPE, KIT, Karlsruhe — ⁶PHI, KIT, Karlsruhe — ⁷PI1, Stuttgart University, Stuttgart

We present a standardized, control-platform-agnostic procedure for tuning up superconducting qubits, developed to ensure consistency and reproducibility across laboratories and to enable metrological studies of qubit performance. A central component of the protocol is the calibration of a high-fidelity QND readout, which forms the foundation for all subsequent qubit measurements. Building on this, we establish the control pulses required for reliable qubit manipulation, including calibrated π and π/2 pulses. After completing the pulse-calibration workflow, we validate the tuneup through randomized benchmarking and readout-induced leakage benchmarking, providing quantitative checks of both gate performance and measurement backaction. This unified procedure supports transparent comparison of results across different control stacks and contributes to building a consistent metrological framework for superconducting-qubit experiments.

Keywords: Superconducting Qubit; Metrology; Tuneup; Calibration