QubiC update 2025: expandability, versatility, modularity and usability

ORAL

Abstract

The QUantum BIt Control (QubiC) system is developed to control and readout superconducting qubits using FPGA technology from 2018. The latest version QubiC 2.0 is developed on Xilinx RFSoC evaluation board ZCU216 alongside a series of custom designed analog front end boards to meet the evolving requirement for different kinds of quantum processing units (QPUs). The hardware is packaged in standard 2U 19'' chassis and multiple chassis are synchronized to control larger QPUs. The FPGA gateware are refactored to streamline for a variety of configurations. The software APIs are updated together with more detailed documentation to improve the usability. Utilizing the QubiC system, research on the CPU-FPGA-QPU co-design has demonstrated significant reduced quantum circuits execution times.

*This material is based upon work supported by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Quantum Systems Accelerator. Additional support is acknowledged from the U.S. Department of Energy, Office of Science, Advanced Scientific Computing Research Testbeds for Science program, and the Office of High Energy Physics under Contract No. DE-AC02-05CH11231.

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Presenters

  • Gang Huang

    • Lawrence Berkeley National Laboratory

Authors

  • Gang Huang

    • Lawrence Berkeley National Laboratory

  • Yilun Xu

    • Lawrence Berkeley National Laboratory

  • Neelay Fruitwala

    • Lawrence Berkeley National Lab
    • Lawrence Berkeley National Laboratory

  • Abhi D Rajagopala

    • Lawrence Berkeley National Laboratory

  • Akel Hashim

    • University of California, Berkeley

  • Larry Chen

    • University of California, Berkeley

  • Kasra Nowrouzi

    • Lawrence Berkeley National Laboratory

  • David I Santiago

    • Lawrence Berkeley National Laboratory

  • Irfan Siddiqi

    • University of California, Berkeley