scholarly journals Quantum random number generation with uncharacterized laser and sunlight

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Yu-Huai Li ◽  
Xuan Han ◽  
Yuan Cao ◽  
Xiao Yuan ◽  
Zheng-Ping Li ◽  
...  

AbstractThe entropy or randomness source is an essential ingredient in random number generation. Quantum random number generators generally require well modeled and calibrated light sources, such as a laser, to generate randomness. With uncharacterized light sources, such as sunlight or an uncharacterized laser, genuine randomness is practically hard to be quantified or extracted owing to its unknown or complicated structure. By exploiting a recently proposed source-independent randomness generation protocol, we theoretically modify it by considering practical issues and experimentally realize the modified scheme with an uncharacterized laser and a sunlight source. The extracted randomness is guaranteed to be secure independent of its source and the randomness generation speed reaches 1 Mbps, three orders of magnitude higher than the original realization. Our result signifies the power of quantum technology in randomness generation and paves the way to high-speed semi-self-testing quantum random number generators with practical light sources.

Author(s):  
Yang Liu ◽  
Xiao Yuan ◽  
Ming-Han Li ◽  
Weijun Zhang ◽  
Qi Zhao ◽  
...  

Author(s):  
R. Chase Harrison ◽  
Benjamin K. Rhea ◽  
Frank T. Werner ◽  
Robert N. Dean

The desirable properties exhibited in some nonlinear dynamical systems have many potential uses. These properties include sensitivity to initial conditions, wide bandwidth, and long-term aperiodicity, which lend themselves to applications such as random number generation, communication and audio ranging systems. Chaotic systems can be realized in electronics by using inexpensive and readily available parts. Many of these systems have been verified in electronics using nonpermanent prototyping at very low frequencies; however, this restricts the range of potential applications. In particular, random number generation (RNG) benefits from an increase in operation frequency, since it is proportional to the amount of bits that can be produced per second. This work looks specifically at the nonlinear element in the chaotic system and evaluates its frequency limitations in electronics. In practice, many of nonlinearities are difficult to implement in high speed electronics. In addition to this restriction, the use of complex feedback paths and large inductors prevents the miniaturization that is desirable for implementing chaotic circuits in other electronic systems. By carefully analyzing the fundamental dynamics that govern the chaotic system, these problems can be addressed. Presented in this work is the design and realization of a high frequency chaotic oscillator that exhibits complex and rich dynamics while using a compact footprint and low power consumption.


SPIN ◽  
2019 ◽  
Vol 10 (01) ◽  
pp. 2050003 ◽  
Author(s):  
Iman Alibeigi ◽  
Abdolah Amirany ◽  
Ramin Rajaei ◽  
Mahmoud Tabandeh ◽  
Saeed Bagheri Shouraki

Generation of random numbers is one of the most important steps in cryptographic algorithms. High endurance, high performance and low energy consumption are the attractive features offered by the Magnetic Tunnel Junction (MTJ) devices. Therefore, they have been considered as one of the promising candidates for next-generation digital integrated circuits. In this paper, a new circuit design for true random number generation using MTJs is proposed. Our proposed circuit offers a high speed, low power and a truly random number generation. In our design, we employed two MTJs that are configured in special states. Generated random bit at the output of the proposed circuit is returned to the write circuit to be written in the relevant cell for the next random generation. In a random bitstream, all bits must have the same chance of being “0”or “1”. We have proposed a new XOR-based method in this paper to resolve this issue in multiple random generators that produce truly random numbers with a different number of ones and zeros in the output stream. The simulation results using a 45[Formula: see text]nm CMOS technology with a special model of MTJ validated the advantages offered by the proposed circuit.


Author(s):  
Michael A. Wayne ◽  
Gleb Akselrod ◽  
Evan R. Jeffrey ◽  
Paul G. Kwiat

2010 ◽  
Vol 18 (12) ◽  
pp. 13029 ◽  
Author(s):  
Martin Fürst ◽  
Henning Weier ◽  
Sebastian Nauerth ◽  
Davide G. Marangon ◽  
Christian Kurtsiefer ◽  
...  

Author(s):  
E. Jack Chen

A facility for generating sequences of pseudorandom numbers is a fundamental part of computer simulation systems. Furthermore, multiple independent streams of random numbers are often required in simulation studies, for instance, to facilitate synchronization for variance-reduction purposes, and for making independent replications. A portable set of software utilities is described for uniform random-number generation. It provides for multiple generators (streams) running simultaneously, and each generator (stream) has its sequence of numbers partitioned into many long disjoint contiguous substreams. Simple procedure calls allow the user to make any generator “jump” ahead/back v steps (random numbers). Implementation issues are discussed. An efficient and portable code is also provided to implement the package. The basic underlying generator CMRG (combined Multiple Recursive Generator) combines two multiple recursive random number generators with a period length of approximately 2191 (˜ 3.1× 1057), good speed, and excellent theoretical properties.


2018 ◽  
Vol 120 (1) ◽  
Author(s):  
Yang Liu ◽  
Xiao Yuan ◽  
Ming-Han Li ◽  
Weijun Zhang ◽  
Qi Zhao ◽  
...  

2019 ◽  
Vol 4 (2) ◽  
pp. 025013 ◽  
Author(s):  
Bingjie Xu ◽  
Ziyang Chen ◽  
Zhengyu Li ◽  
Jie Yang ◽  
Qi Su ◽  
...  

APL Photonics ◽  
2020 ◽  
Vol 5 (10) ◽  
pp. 101301
Author(s):  
Nicolò Leone ◽  
Davide Rusca ◽  
Stefano Azzini ◽  
Giorgio Fontana ◽  
Fabio Acerbi ◽  
...  

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