Open Source Contributions

Qiskit Calibration Toolkit & AKLT Simulations

Organization: IBM & Qiskit Community
Duration: January 2023 - November 2024
Location: Remote

This repository hosts the Qutrit Calibration package, an extension for Qiskit Experiments designed to facilitate the calibration of single-qutrit gates. By expanding the standard qubit calibration routines to the third energy level ($|2\rangle$ state), this toolkit enables researchers to explore qutrit physics and higher-dimensional quantum simulations.

View the project: Qutrit Calibration Repository

Key Features

The package provides a suite of experiments to tune up the $|1\rangle \leftrightarrow |2\rangle$ transition (EF transition) gates, including SX12, X12, Sy12, Y12, and RZ12.

Supported calibration experiments include:

  • Spectroscopy: NarrowBandSpectroscopyCal for identifying the $|1\rangle \leftrightarrow |2\rangle$ transition frequency.
  • Amplitude Calibration: RoughEFAmplitudeCal and FineEFXAmplitudeCal for tuning pulse amplitudes.
  • Frequency Calibration: RoughEFFrequencyCal for coarse frequency adjustments.
  • DRAG Calibration: RoughEFXDragCal for optimizing pulse shaping to reduce leakage.

Research Contributions

Our spin-1 AKLT models directly led to the development and deployment of transmon qutrit calibration codes in the Qiskit Community project:

  • Implemented AKLT ground-state simulations on superconducting qubits
  • Contributed to transmon qutrit calibration methodology
  • Collaborated with the Qiskit Community on quantum circuit optimization

Note: This project is currently in an alpha release state. It serves as a foundational tool for enabling advanced research, such as the simulation of AKLT models and other spin-1 many-body systems on superconducting hardware.