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This Is the Fastest Random-Number Generator Ever Built

This Is the Fastest Random-Number Generator Ever Built
A laser generates quantum randomness at a rate of 250 trillion bits per second and could lead to devices small enough to fit on a single chip
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Researchers have built the fastest random-number generator ever made, using a simple laser. It exploits fluctuations in the intensity of light to generate randomness a coveted resource in applications such as data encryption and scientific simulations and could lead to devices that are small enough to fit on a single computer chip.
True randomness is surprisingly difficult to come by. Algorithms in conventional computers can produce sequences of numbers that seem random at first, but over time these tend to display patterns. This makes them at least partially predictable, and therefore vulnerable to being decoded. ....

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MIT scientists present a plan to make atomic clocks even more accurate

But hoping to improve on that staggering feat, scientists at MIT have now pushed the envelope and devised plans for an even more reliable timepiece with notions for a mind-boggling new quantum-entangled atomic clock. Details of their research were recently published in the online journal Nature, where MIT s team provided the blueprints for this remarkable device.
Credit: MIT
You d think that recording the vibrations of a single atom should be the ultimate method by which to document time passing. However, a pesky principle involving random quantum fluctuations can disturb the near-perfect mechanism in an effect called the Standard Quantum Limit. ....

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