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ACV001 | 1 month ago

Quite a dumb application of quantum physics. Cooling something to near zero, which takes energy, and is complex, and big, in order to obtain precisions which are magnitudes higher than what is necessary. As if one would use CPUs to prop up an uneven table and would boast that they use microelectronics.

"Instead of relying on conventional sensors, these devices use clouds of atoms cooled to near absolute zero. At those temperatures, atoms start to behave strangely — acting as both particles and waves. As the atoms “fall” through a sensor, their wave patterns shift in response to acceleration. Using what’s effectively an ultra-precise optical ruler, the system can read these changes with extraordinary accuracy, without needing satellites at all."

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foltik|1 month ago

Quite an ignorant comment. It’s literally nothing like using a CPU to prop up an uneven table.

It’s precisely the application of quantum physics that enables current prototypes of these IMUs to achieve 1-2 orders of magnitude less position error accumulation vs. state-of-the-art gyroscopes. Think 0.1m/min vs. 10m/min.

Obviously the tube isn’t the holy grail of applications, it’s just a test bed to improve the technology. Think about why GPS is useful. Imagine that, but entirely self contained.

krunck|1 month ago

See comment by "Traster".