Method for producing random quantum number at high speed based on vacuum state quantum fluctuation

Abstract

The invention relates to a high-speed true random quantum number generating method, in particular to a method for producing random quantum number at high speed based on vacuum state quantum fluctuation. The problem that the production speed of an existing vacuum random quantum number generator is lower is solved. According to the specific scheme, the high-speed true random quantum number generating method mainly comprises the following steps that the translation effect of Gaussian distribution is firstly exerted to a vacuum state in a phase space, amplification of vacuum-state orthogonal amplitude component noise in the phase space is achieved, and the entropy content introduced by quantum noise in a system is increased; the true random bits which can be extracted in data postprocessing are increased; the background light of a homodyne detection system is strengthened, the sensitivity of the detection system to vacuum noise is improved, and a vacuum noise measurement value is amplified, so that the framing amount of vacuum noise statistics, namely sampling quantization bits are remarkably increased. By adopting the method, the vacuum random quantum number generating rate is effectively improved, and a new means is provided for manufacturing of high-speed random quantum number generators.

Description

technical field [0001] The invention belongs to a method for generating quantum high-speed random numbers, in particular to a method for generating quantum random numbers at high speed based on vacuum state quantum fluctuations. Background technique [0002] The importance of random numbers has been known for a long time, and it has been widely used in the fields of sample extraction of Monte Carlo simulation statistics in analog computing, cryptographic systems of communication systems and other fields; cryptographic systems require true random numbers, and The generation and development of physical true random numbers has laid an important foundation for the realization of absolutely secure confidential communication. In the past two decades, the quantum key distribution (QKD) proposed based on the basic quantum mechanics principles such as quantum non-cloning and uncertainty principle The program has made important progress. Many countries in the world have achieved fruit...

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Problems solved by technology

[0003] In order to solve the problem of low generation rate of existing quantum random number generators, the present in

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