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Related Experiment Video

Updated: Dec 13, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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An integrated device with high performance multi-function generators and time-to-digital convertors.

X Qin1, Z Shi1, Y Xie1

  • 1CAS Key Laboratory of Microscale Magnetic Resonance and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.

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|February 3, 2017
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This study presents a re-configurable Field-Programmable-Gate-Array (FPGA) device for Nitrogen-Vacancy (N-V) center quantum applications. It offers high-performance waveform generation and precise time measurements for quantum technologies.

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Area of Science:

  • Quantum Information Science
  • Solid-State Physics
  • Quantum Computing Hardware

Background:

  • Nitrogen-Vacancy (N-V) centers are promising solid-state qubits for quantum applications.
  • Existing control systems often lack the integration and re-configurability required for advanced quantum experiments.
  • High-performance, adaptable hardware is crucial for scaling quantum technologies.

Purpose of the Study:

  • To develop a highly integrated, high-performance, and re-configurable device for N-V center quantum applications.
  • To leverage Field-Programmable-Gate-Array (FPGA) technology for digital control and precise timing.
  • To create a versatile platform applicable to various solid-state quantum systems.

Main Methods:

  • Digital control implemented on an FPGA managing waveform generation and time-to-digital converters.
  • Two arbitrary waveform generator channels (1 Gsps, 500 MHz bandwidth).
  • Twelve pulse channels with 50 ps resolution and an FPGA-based time-to-digital converter (23 ps precision).
  • Integrated data accumulation module for count rate and time measurement distributions.
  • Analog compartment with a digital-to-analog converter and 500 MHz low-pass filters.

Main Results:

  • A fully FPGA-implemented digital control system for N-V center applications.
  • Achieved 50 ps time resolution for pulse channels and 23 ps precision for time measurements.
  • Demonstrated capability for multi-function digital waveform generation and data acquisition.
  • Modular hardware design allowing for easy upgrades and compatibility.

Conclusions:

  • The developed device provides a high-performance, integrated solution for N-V center quantum applications.
  • The FPGA-based architecture offers flexibility and precision for quantum control and measurement.
  • The platform is suitable for N-V centers and other solid-state quantum systems like quantum dots and defect spins.