A team of international scientists recently developed a laser that can generate 254 trillion random digits per second, which is a hundred times faster than computer-based random number generators (RNG).
However, random number generation has been available for hundreds of years, it is very vital in computing as it creates the basis of cryptography. With more devices online than ever before, the need for faster encryption that can keep out bad actors has become more crucial. Google showcased the apparent supremacy of its 53-qubit quantum computer using an RNG problem.
That’s the reason this new system could turn things around. It can generate 250 terabytes of random bits per second. If was so hard for the team behind it to record its output using a high-speed camera. Coming from the mouth of the researchers, their system trumps physical random number generators both in speed and through its ability to create many bitstreams simultaneously.
The new invention makes use of a tiny laser, just a millimeter long, which reflect light between mirrors positioned at either end of an hourglass shaped cavity before exiting the device.
These interfere with each other to generate rapid intensity fluctuations that the team recorded with a camera, which measured light intensity at 254 spots across the beam about every trillionth of a second.
The random generator system was jointly developed by researchers from Nanyang Technological University, Singapore (NTU Singapore), Yale University, and Trinity College Dublin, and made in NTU. As for the system’s future, the team aim to make it ready for practical use by by incorporating the laser into a compact chip.
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