If they send us enough neutrinos and we have a big enough detector, yeah. I don't think it beats the electromagnetic spectrum for practicality.
The big advantage of neutrinos for communication is that you could send them right through the earth so you could reach a submarine or something without any satellites. There's also the crazy story that never goes away that neutrinos might go faster than light. The result
was absurdly too fast because neutrinos from most sources have a huge energy compared to the neutrino rest mass so their speed is always very close to the speed of light whether they go just a hair faster or a hair slower. Unless you count an early event that most scientists don't, there was no sign of neutrino dispersion in
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If they send us enough neutrinos and we have a big enough detector, yeah. I don't think it beats the electromagnetic spectrum for practicality.
The big advantage of neutrinos for communication is that you could send them right through the earth so you could reach a submarine or something without any satellites. There's also the crazy story that never goes away that neutrinos might go faster than light. The result
https://en.wikipedia.org/wiki/2011_OPERA_faster-than-light_n...
was absurdly too fast because neutrinos from most sources have a huge energy compared to the neutrino rest mass so their speed is always very close to the speed of light whether they go just a hair faster or a hair slower. Unless you count an early event that most scientists don't, there was no sign of neutrino dispersion in
https://en.wikipedia.org/wiki/SN_1987A
However when people try to measure the neutrino mass squared they get answers that are within the error bars of zero but trend negative
https://www.mdpi.com/2073-8994/14/6/1172
If the neutrino was a tachyon and you could make super-lower energy neutrinos than maybe you could use it as an FTL communicator.