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This method to generate cold atoms does not need an applied magnetic field, therefore reducing the size, weight, power consumption and cost of sensors. A cold atom is an atom that has been laser-cooled to extremely low temperatures, typically near absolute zero (-273.15C). At these temperatures, the thermal motion of atoms is very slow, allowing their quantum mechanical properties to be precisely controlled. Quantum Sensing is an advanced sensor technology that detects changes in motion, and electric and magnetic fields, by collecting data at the atomic level.

https://slashdot.org/story/434971

https://www.royalnavy.mod.uk/news/2024/october/31/20241101-royal-navy-successfully-tests-quantum-sensing-technology

> This method to generate cold atoms does not need an applied magnetic field, therefore reducing the size, weight, power consumption and cost of sensors. A cold atom is an atom that has been laser-cooled to extremely low temperatures, typically near absolute zero (-273.15C). At these temperatures, the thermal motion of atoms is very slow, allowing their quantum mechanical properties to be precisely controlled. Quantum Sensing is an advanced sensor technology that detects changes in motion, and electric and magnetic fields, by collecting data at the atomic level. https://slashdot.org/story/434971 https://www.royalnavy.mod.uk/news/2024/october/31/20241101-royal-navy-successfully-tests-quantum-sensing-technology
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[–] • 2 pts (edited )

tl; dr: global positioning without relying on GPS (or any satellites?).

A comment:

They want to build a quantum compass (en.wikipedia.org). This is about measuring acceleration from the quantum behavior of particles. And by integrating acceleration measures, a process called inertial navigation, one can infer the position.

So basically a more accurate accelerometer