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Microcontroller-Optimized Measurement Electronics for Coherent Control Applications of NV Centers.

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Summary
This summary is machine-generated.

This study presents cost-effective electronics for controlling nitrogen-vacancy (NV) centers using microcontrollers. This enables precise manipulation of NV electron spins for quantum applications, even in educational settings.

Keywords:
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Area of Science:

  • Quantum Information Science
  • Condensed Matter Physics
  • Materials Science

Background:

  • Nitrogen-vacancy (NV) centers exhibit long coherence times at room temperature, making them suitable for quantum sensing and computing.
  • Coherent control of NV electron spin triplets necessitates nanosecond microwave π pulses, typically generated using expensive, high-resolution laboratory equipment.
  • Current equipment limitations hinder the adoption of NV center technology in educational contexts.

Purpose of the Study:

  • To develop cost-effective measurement electronics for NV centers optimized for microcontroller integration.
  • To enable precise coherent control of NV electron spins using accessible technology.
  • To adapt nanosecond pulse generation for NV spin manipulation to the resolution limits of microcontrollers.

Main Methods:

  • Designed novel measurement electronics by deconstructing conventional laboratory equipment functions.
  • Utilized commercially available integrated components for cost reduction and accessibility.
  • Leveraged the linear relationship between Rabi frequency and digital-to-analog converter (DAC) output for pulse control.
  • Implemented microcontroller-based adaptation of pulse durations for electron spin flips.

Main Results:

  • Demonstrated a linear correlation between Rabi frequency and DAC output voltage.
  • Successfully adapted the π pulse length for electron spin flips to microcontroller resolution limits.
  • Developed a cost-effective, handheld setup for coherent control of NV centers.

Conclusions:

  • The developed electronics provide a viable, low-cost solution for NV center coherent control.
  • This approach democratizes access to NV center research and education.
  • The handheld setup facilitates practical applications in quantum sensing and computing education.