A Bose–Einstein condensate (BEC) is the state in which billions or trillions of atoms lose their individual identity and can all be described by a single quantum wave function, it's the same thing that happens in a laser beam except that in a laser it's photons that have the same quantum wave function not atoms. BOC's were first made about 25 years ago and have been used to construct atomic interferometers that can perform some of the most precise spatial measurements ever made, but one serious practical drawback prevented them from becoming a more common item in an engineers toolbox, nobody had ever been able to make a BEC that could exist longer than a tiny fraction of a second. But now in the June 8, 2022 issue of the journal Nature researchers explain how they found a way to make a BEC last essentially forever, they discovered how to make "*the matter wave analogue of a continuous wave optical laser with fully reflective cavity mirrors'*'. The authors speculate that their new technology "*could benefit applications ranging from dark-matter and dark-energy searches, gravitational-wave detection tests of Einstein’s equivalence principle to explorations in geodesy*".
Continuous Bose–Einstein condensation <https://www.nature.com/articles/s41586-022-04731-z> John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis> cob -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/everything-list/CAJPayv03HRbZZewF%2BteBMO4-azXVTJp_O5TyzdwRv%3Dn_camAjQ%40mail.gmail.com.
