Design of a quantum random number generator on an integrated platform

Mohammadreza Abazari, Majid Jaberi, Mina Farajzadeh +2 more

Chao Wang, Ignatius William Primaatmaja, Hong Jie Ng +5 more

We propose, design and experimentally demonstrate a quantum random number generator (QRNG) that completely removes the calibration requ0irement for the measurement device. The QRNG features a simple implementation and readily implementable on integrated photonic platforms.

Gong Zhang, Ignatius William Primaatmaja, Yue Chen +7 more

The power of quantum random number generation is more than just the ability to create truly random numbers—it can also enable , which allows the user to verify the implementation integrity of critical quantum components with minimal assumptions. In this work, we develop and implement a self-testing quantum random number generator (QRNG) chipset capable of generating 15.33 Mbits of certifiable randomness in each run, producing an expansion rate of 5.11 × 10 − 4 at a repetition rate of 10 MHz, with quantum side information considered for a high level of security. The chip design is based on a highly loss-and-noise-tolerant measurement-device-independent protocol, where random coherent states encoded using quadrature phase shift keying are used to self-test the integrated homodyne detectors—well-known to be challenging to characterize in practice. Importantly, this proposal opens up the possibility of implementing miniaturized self-testing QRNG devices at production scale using standard silicon photonics foundry platforms.

Pablo Bolívar López

Simon White, Friederike Klauck, Toan Trong Tran +8 more

Abstract Quantum random number generation (QRNG) harnesses the intrinsic randomness of quantum mechanical phenomena. On-chip photonic circuitry provides a robust and versatile platform that can address and explore fundamental questions in quantum as well as classical physics. Likewise, integrated waveguide-based architectures hold the potential for intrinsically scalable, efficient and compact implementations of photonic QRNG. Here, we harness the quantum emission from the two-dimensional material hexagonal boron nitride an emerging atomically thin medium that can generate single photons on demand while operating at room temperature. By means of a customized splitter arrangement, we achieve true random number generation through the measurement of single photons exiting one of four designated output ports, and subsequently verify the randomness of the sequences in accordance with the National Institute of Standards and Technology benchmark suite. Our results clearly demonstrate the viability and efficiency of this approach to on-chip deterministic random number generators.

Albert Capdevila Ortiz