Schneier - Friday Squid Blogging: New SQUID

There's a new SQUID:

A new device that relies on flowing clouds of ultracold atoms promises potential tests of the intersection between the weirdness of the quantum world and the familiarity of the macroscopic world we experience every day. The atomtronic Superconducting QUantum Interference Device (SQUID) is also potentially useful for ultrasensitive rotation measurements and as a component in quantum computers.

"In a conventional SQUID, the quantum interference in electron currents can be used to make one of the most sensitive magnetic field detectors," said Changhyun Ryu, a physicist with the Material Physics and Applications Quantum group at Los Alamos National Laboratory. "We use neutral atoms rather than charged electrons. Instead of responding to magnetic fields, the atomtronic version of a SQUID is sensitive to mechanical rotation."

As usual, you can also use this squid post to talk about the security stories in the news that I haven't covered.

Read my blog posting guidelines here.



from Schneier on Security https://www.schneier.com/blog/archives/2020/08/friday_squid_bl_740.html

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