We demonstrated in 2012 a neutrino-based link which “achieved a decoded data rate of 0.1 bits/sec with a bit error rate of 1% over a distance of 1.035 km, including 240 m of earth” [1].
To put that into perspective, a through-the-core beam would reach its antipode about 24 milliseconds before its circumnavigating partner [2].
[2] assuming a spherical earth with diameter 12 756 km [a] and circumference 40,075 km [b], and thus distance difference of 7 282 km, and a speed of light of 300mm m/s
We demonstrated in 2012 a neutrino-based link which “achieved a decoded data rate of 0.1 bits/sec with a bit error rate of 1% over a distance of 1.035 km, including 240 m of earth” [1].
To put that into perspective, a through-the-core beam would reach its antipode about 24 milliseconds before its circumnavigating partner [2].
[1] https://arxiv.org/abs/1203.2847
[2] assuming a spherical earth with diameter 12 756 km [a] and circumference 40,075 km [b], and thus distance difference of 7 282 km, and a speed of light of 300mm m/s
[a] https://imagine.gsfc.nasa.gov/features/cosmic/earth_info.htm...
[b] https://en.wikipedia.org/wiki/Earth%27s_circumference