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Related Experiment Video

Updated: Apr 14, 2026

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics
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Quantum Random Number Generation Using Nanodiamonds and Nanopillar-Isolated Single NV Centers.

Oskars Rudzitis1, Reinis Lazda1, Valts Krumins1

  • 1Laser Centre, University of Latvia, Jelgavas Street 3, LV-1004 Riga, Latvia.

Nanomaterials (Basel, Switzerland)
|April 13, 2026
PubMed
Summary

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We developed two room-temperature quantum random number generators using diamond nitrogen-vacancy centers. These solid-state devices offer a scalable solution for generating secure, unpredictable quantum randomness.

Area of Science:

  • Quantum physics
  • Materials science
  • Information security

Background:

  • Quantum random number generation (QRNG) offers inherently unpredictable randomness.
  • Nitrogen-vacancy (NV) centers in diamond are promising solid-state qubits for quantum technologies.

Purpose of the Study:

  • To demonstrate and compare two solid-state, room-temperature QRNG implementations using NV centers in diamond.
  • To assess the scalability of diamond-based QRNG for quantum-secure applications.

Main Methods:

  • Utilized ensemble fluorescence from nanodiamonds for one QRNG implementation.
  • Employed single-photon emission from single NV centers in diamond nanopillars for a second QRNG.
  • Characterized entropy rates, statistical performance, and robustness of both methods.
Keywords:
confocal microscopynanodiamondsnanopillarsnitrogen-vacancy centers in diamondquantum random number generationsingle-photon detection

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Main Results:

  • Achieved high entropy rates (above 0.98 bits) for both QRNG approaches.
  • Demonstrated robust statistical performance and operational stability.
  • Fabricated diamond nanopillars enhanced light collection and minimized crosstalk for single NV center QRNG.

Conclusions:

  • Diamond-based NV centers provide a viable platform for scalable, room-temperature QRNG.
  • Both ensemble and single-NV approaches show potential for quantum-secure randomness generation.
  • Further development can establish NV-based QRNG as a practical solution for secure communication.