Space-Division Semiconductor Detector for High-Speed Quantum Random Number Generation
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Solution Overview
Problem
Current pure random number generation methods using quantum mechanical phenomena are limited by dead time in emission particle detectors, restricting the rate at which pure random numbers can be generated, which is insufficient for high-speed information processing applications.
Innovation Solution
A quantum random number generation apparatus employing a space-division semiconductor detector with multiple cells that absorb and independently process emission particles from a radioactive isotope, allowing for simultaneous detection and processing of multiple particles without dead time restrictions, utilizing a signal processor to generate random numbers based on absorption events and locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single emission particle detector is used to measure particles from radioactive isotope decay, then the detector can identify individual particles, but the dead time of the detector limits the random number generation rate
Solution Approach 1:
The detector is divided into multiple independent detection regions (first detection region, second detection region, etc.), each capable of independently detecting emission particles. This segmentation allows simultaneous detection of multiple particles across different regions, effectively eliminating the dead time limitation of a single detector and increasing the random number generation rate while maintaining detection precision in each region.
2Productivity
If the radiation amount of the radioactive isotope is increased to increase emission events per unit time, then the random number generation rate can be increased, but emission particles emitted during shorter time periods than the dead time cannot be detected
Solution Approach 1:
By dividing the detector into multiple independent detection regions, the system can handle higher radiation amounts without losing detection accuracy. Each region operates independently with its own detection cycle, so increasing the number of regions allows the system to process more emission particles per unit time while each individual region maintains its detection accuracy without being affected by the dead time of other regions.
Solution Approach 2:
The invention transitions from temporal dimension (single detector detecting particles sequentially over time) to spatial dimension (multiple detectors detecting particles simultaneously across different spaces). This dimensional change allows the system to increase the random number generation rate by utilizing spatial parallelism rather than temporal sequencing, thereby maintaining detection accuracy even at higher radiation amounts.
3Productivity
If entropy is sampled at high speed to increase the random number generation rate, then the sampling time interval becomes narrower, but the probability of autocorrelation between preceding and succeeding sampling data increases and independency between sample data is broken
Solution Approach 1:
The detection system is segmented into multiple independent regions, each generating random numbers based on its own detection events. This spatial segmentation ensures that even when sampling occurs at high speeds, the random numbers generated from different regions remain independent of each other, preventing autocorrelation issues that would arise from rapid temporal sampling of a single detector.
Solution Approach 2:
The invention shifts from temporal sampling (rapid sequential sampling of a single detector) to spatial sampling (simultaneous sampling across multiple detectors). This dimensional transition allows high-speed random number generation while maintaining independence between samples, as each spatial region provides statistically independent detection events that do not suffer from autocorrelation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly increases the random number generation rate by eliminating dead time limitations, enabling high-speed pure random number generation suitable for computers, network processors, and IoT devices.
Implementation Method 1
The phenomenon of natural decay of radioactive isotopes has all the features that can be used as pure random number entropy
Implementation Method 2
a space-division semiconductor detector including a plurality of cells, each individually absorbing a plurality of emission particles emitted from a radioactive isotope
Data Source
AI summary
The exemplary embodiments of the present invention provide a quantum random number generation apparatus according to an exemplary embodiment of the present invention including: a space-division semiconductor detector including a plurality of cells, each individually absorbing a plurality of emission particles emitted from a radioactive isotope; and a signal processor that generates a random number based on an absorption event at which the plurality of emission particles are absorbed into the plurality of cells, and thus new type of random number conversion method that combines a spatial randomness and existing temporal randomness of the emission particle can be provided, there is no restriction generated due to the dead time, the random number generation rate can be remarkably increased, and it is possible to generate of a pure random number at high speed, which is required by a computer, a network processor, or an IoT device.