Random numbers via fluctuations of the quantum vacuum

ANU Quantum Random Number Server

This website offers true random numbers to anyone on the internet. The random numbers are generated in real-time in our lab by measuring the quantum fluctuations of the vacuum. The vacuum is described very differently in the quantum mechanical context than in the classical context. Traditionally, a vacuum is considered as a space that is empty of matter or photons. Quantum mechanically, however, that same space resembles a sea of virtual particles appearing and disappearing all the time. This results in the fact that the vacuum does not possess a zero-point energy, and consequently the electo-magnetic field describing this vacuum possesses random fluctuations in phase and amplitude at all frequencies. By carefully measuring these fluctuations, we are able to generate ultra-high bandwidth random numbers.

The hardware is constantly generating random bits at a rate of 5.7Gbits/s. Currently, the rate at which the live bits are streamed is being limited by the bandwidth of the internet connection.

Prior art, thermodynamic: LavaRnd.

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ASCII art for twits!

This is probably going straight down the memory hole. ASCII art is already hard to archive properly; preserving the experience of scrolling through that web page will be even harder. Especially since Twitter uses that break-the-entire-web "#!" Javascript nonsense.

Cute, though.

Previously, previously.

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