Would it be possible to replicate that on mobile phones? Or a special device is required?
1. trying to figure out the feasibility?
"n condensed matter physics, a Bose–Einstein condensate (BEC) is a state of matter that is typically formed when a gas of bosons at very low densities is cooled to temperatures very close to absolute zero (−273.15 °C or −459.67 °F)..."
I guess, a special device is needed. The size of such device will be in thousands of mobile phones just in volume needed.
Yet, it is feasible. ;)
https://en.wikipedia.org/wiki/Boson
"multiple identical composite bosons (in this context sometimes known as 'bose particles') behave at high densities or low temperatures in a characteristic manner described by Bose–Einstein statistics: for example a gas of helium-4 atoms becomes a superfluid at temperatures close to absolute zero."
Helium leaks as nothing else, even more than hydrogen.
Here's some leak rates of heilum: https://www.researchgate.net/figure/Comparison-of-the-helium...
Let's say we have a um^3 of helium in the device proposed. Let's assume leak rate of 8*10^-9 of cm^3/sec. (1e-6/1e-2)^3/(8e-9) is equal to 1.2499999999999998e-4 - all helium will leak in 1/8 of microsecond in the device proposed.
I hope this helps.
this is a but solly, like saying you will eventually have a fridge the size if a m9bile phone - us it usefull?
https://www.gla.ac.uk/research/beacons/nanoquantum/wee-gglas...
One important distinction is between measuring gravity (generally, acceleration in the vertical direction) and the gravity gradient. The latter is generally easier and more useful for navigation.