Quantum random number generation method based on vacuum parallel
A technology of quantum random numbers and generation methods, which is applied in random number generators, electrical digital data processing, digital data processing components, etc., can solve the problem of low generation rate of quantum random numbers in a vacuum, and achieve an increase in the generation rate and a high generation rate. Effectively improve the effect
Active Publication Date: 2018-05-15
TAIYUAN UNIV OF TECH
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[0004] In order to solve the problem of low generation rate of existing vacuum quantum random numbers, the present invention proposes a vacuum parallel quantum random number generation method to improve the generation rate of vacuum quantum random numbers
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[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present invention, rather than All the embodiments; based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.
[0026] The embodiment of the present invention provides a method for generating parallel quantum random numbers based on vacuum, including the following steps:
[0027] Step 1: Build a balanced zero-beat detection system for the vacuum state of the light field. The schematic diagram of the balanced zero-beat detection system is shown in figure 1 as shown in Figure 4 Shown is the experimental principle diagram of ...
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The invention belongs to the field of quantum random number generation and provides a quantum random number generation method based on vacuum parallel. The method includes the following steps of constructing a balanced homodyne detection system in a light field vacuum state, and performing balanced homodyne detection; controlling the balanced homodyne detection system to conduct equal probabilityframing and binary system encoding after photocurrent signals obtained through the balanced homodyne detection are mixed with a 10 MHz radio-frequency signal and filtered, and calculating pure quantumentropy; changing frame numbers, repeatedly calculating the pure quantum entropy, and selecting the frame number corresponding to maximum pure quantum entropy obtained as the best frame number; dividing the photocurrent signals obtained by the balanced homodyne detection system into multipath photocurrent sub-signals to output, inputting each path into FPGA after each path is respectively mixed with different frequency radio-frequency signals and filtered; collecting multifrequency analog data, conducting analog-to-digital conversion, and extracting random numbers through the FPGA, and combining and outputting pure random number sub-sequences generated by each path; the method can increase manyfold the generation rate of the vacuum quantum random numbers compared with conventional schemes, and can be widely applied to the field of quantum random numbers.
Description
technical field [0001] The invention belongs to the field of generating quantum random numbers, and in particular relates to a method for generating quantum random numbers based on vacuum parallelism. Background technique [0002] Cryptographic systems require "strong" random numbers. This type of random number needs to have two characteristics—good statistical properties and unpredictability—the statistical properties obey a uniform random distribution and have high entropy content. The generation of physical random numbers originates from the true random phenomenon in the physical world. Based on the physical entropy source with true randomness in nature, the final random number output is generated through physical measurement methods and true random number extraction, so the source of physical random numbers is also Known as a true random number generator. The generation and development of physical true random numbers have laid an important foundation for the realization...
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Login to View More IPC IPC(8): G06F7/58
CPCG06F7/588
Inventor 郭晓敏成琛刘日鹏郭龑强
Owner TAIYUAN UNIV OF TECH