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Hardware for dynamic quantum computing.

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Researchers developed advanced hardware, gateware, and software for dynamic quantum information processing. This enables real-time feedback for superconducting qubits, advancing quantum computing capabilities.

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Area of Science:

  • Quantum Computing
  • Superconducting Qubits
  • Quantum Information Processing

Background:

  • Dynamic quantum experiments require real-time feedback within qubit coherence times.
  • Existing systems often lack the necessary speed for dynamic control and readout.

Purpose of the Study:

  • To present the hardware, gateware, and software developed for dynamic quantum information processing experiments.
  • To enable real-time feedback and feed-forward operations on superconducting qubits.

Main Methods:

  • Developed custom hardware, gateware, and software for both superconducting qubit control and readout.
  • Utilized field-programmable gate arrays (FPGAs) for high-speed signal processing and arbitrary control flow.
  • Implemented a custom signal processing stack for heterodyne receivers to achieve minimal latency qubit state assignments.

Main Results:

  • Achieved real-time qubit state information feedback/feed-forward within a fraction of coherence time.
  • Demonstrated arbitrary control flow capabilities for superconducting qubits.
  • Enabled tailored, reconfigurable qubit control systems suitable for iterative development.

Conclusions:

  • The developed platforms provide a robust foundation for dynamic quantum information processing.
  • Extensive use of FPGAs allows for flexible and rapid development of quantum control systems.
  • These advancements are crucial for pushing the boundaries of superconducting qubit-based quantum computing.