Subscribe now

Physics

Ultra-fast random number generator uses quantum fluctuations

Variations driven by pairs of particles and antiparticles that form and then annihilate can be used to generate random numbers up to 200 times faster than available commercial devices can

By Adam Mann

22 March 2023

Illustration of quantum vacuum fluctuations

Giroscience/Science Photo Library

Using the inherent quantum flickering of empty space, researchers have figured out how to generate random numbers at an unprecedented rate. The record-breaking method could be used to enhance cryptographic security in large data centres.

Modern cryptography relies on the production of random numbers, which are used as keys to encrypt the vast stores of information produced by governments and businesses. Computer algorithms are often used to generate seemingly random numbers, but a sophisticated enough attacker could figure out what predetermined steps a computer is using …

Article amended on 24 March 2023

We clarified in the headline that this is the fastest random number generator of its type

To continue reading, subscribe today with our introductory offers

View introductory offers

No commitment, cancel anytime*

Offer ends 14th June 2023.

*Cancel anytime within 14 days of payment to receive a refund on unserved issues.

Inclusive of applicable taxes (VAT)

or

Existing subscribers

Sign in to your account