A normal compass doesn't require satellites etc., to work, however it is magnetic and as such it is subject to variations in the magnetic field. These changes are can be mitigated by the use of gyroscopic compasses in ships etc., but if a gyroscope is toppled it has to reset. What is needed is a quantum version of GPS where you are able to fix you position accurately in 3D space without having to visually reference known marks such as stars, headlands, etc. Maybe a quantum version of the INS (Inertial navigation System) for a start.We have seen stories on Quantum computers, Quantum radar, Quantum communication, and now the UK has announced a Quantum compass. Shouldn’t be too long before we see Quantum tanks, subs, and fighter jets. What I am really looking forward to is a Quantum fusion reactor which will solve all the worlds problems.
UK Scientists Build World’s First Quantum Compass: Tamper-proof device that does not rely on GPS is result of extensive defence funding (excerpt)
Yep especially in the US. Trouble for them is that once such technologies become common use, they can't do much about it. However it's a bit like the old naval race of armour and guns. One side uses more and better armour for pr,so their opposition design and put into service bigger and more powerful guns and projectiles. At some stage someone will figure out how to break the quantum encryption undetectably and also how to undetectably track users on a quantum internet. It'll take time but it will eventually happen.This short article describes efforts to organize the necessary components for a quantum internet. Can’t see law enforcement being too enthusiastic about this of a secure technology being in the public domain.