Information and Communications Technology and Policy

Information and Communications Technology and Policy

Information and Communications Technology and Policy ›› 2024, Vol. 50 ›› Issue (7): 48-58.doi: 10.12267/j.issn.2096-5931.2024.07.007

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Progress on electronic quantum random number generator based on quantum tunneling effect

LIU Yuxuan1, BAI Yuming1, YANG Zhe2, LI Junlin1   

  1. 1. State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
    2. Key Laboratory of Terahertz Optoelectronics Ministry of Education, Department of Physics, Capital Normal University, Beijing 100048, China
  • Received:2024-06-22 Online:2024-07-25 Published:2024-07-30

Abstract:

Since 2000, quantum random number generators (QRNGs) have been receiving increasing attention. Compared to random number generators based on algorithms or classical systems, QRNGs derive their randomness from quantum sources, which are not described by algorithms or equations deterministically but are described by wave functions probabilistically, exhibiting intrinsic randomness. Currently, most QRNGs are based on photonic systems. In recent years, electronic Quantum Random Number Generator (eQRNG) schemes have been proposed. Compared to photonic QRNGs, eQRNGs do not involve electrical-optical-electrical conversion, effectively avoiding the influence of classical noise during the conversion process. This provides an obvious benefit in randomness. Furthermore, the advantages of eQRNGs lie in simple structure, stability, compatibility with semiconductor technology, and the potential for integration. This paper introduces the progress of eQRNGs based on the quantum tunneling effect, including eQRNGs based on tunnel diode, van der Waals heterojunction, and avalanche photodiode. This paper also elaborates on the advantages of eQRNGs in randomness.

Key words: random number, quantum random number generator, quantum tunneling effect

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