On Sat, 5 Nov 2016 04:19:08 +0000 (UTC) Perry Sandeen via time-nuts <time-nuts@febo.com> wrote:
> Time may be relative, but physicists are a stickler for accuracy. Ok.. the story without out the whole media mambojambo and mixup of things can be found at [1]. A description of the setup they used can be found at [2] and [3]. What they basically do is to use two fs frequency combs running at 200MHz, each on the transmitter and receiver side and implement a two-way frequency and time transfer using those pulses. Attila Kinali [1] "Synchronization of clocks through 12km of strongly turbulent air over a city", by Sinclari et al. 2016 http://dx.doi.org/10.1063/1.4963130 [2] "Synchronization of Distant Optical Clocks at the Femtosecond Level", by Deschenes et al. 2016 http://dx.doi.org/10.1103/PhysRevX.6.021016 https://arxiv.org/abs/1509.07888 [3] "Tight real-time synchronization of a microwave clock to an optical clock across a turbulent air path", by Bergeron et al. 2016 http://dx.doi.org/10.1364/OPTICA.3.000441 -- Malek's Law: Any simple idea will be worded in the most complicated way. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.