[151535] in North American Network Operators' Group
Re: $1.5 billion: The cost of cutting London-Tokyo latency by 60ms
daemon@ATHENA.MIT.EDU (George Herbert)
Fri Mar 23 18:35:39 2012
In-Reply-To: <alpine.DEB.2.00.1203241041090.6325@green.darkmere.gen.nz>
Date: Fri, 23 Mar 2012 15:34:42 -0700
From: George Herbert <george.herbert@gmail.com>
To: Simon Lyall <simon@darkmere.gen.nz>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
From the abstract: "The link 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."
http://arxiv.org/pdf/1203.2847v1.pdf
For practical communications, at longer distances, you probably lose
beam intensity as a 1/R^2 function (the neutrino beam isn't precisely
collimated), so 1,000 km away it will be 1 millionth as strong, or
0.0000001 baud, 1 bit per 115.74 days. At 2,000 km it would be less
than 1 bit per year.
Sure you want to do this? 8-)
On Fri, Mar 23, 2012 at 2:44 PM, Simon Lyall <simon@darkmere.gen.nz> wrote:
>
> You guys joke but here is n little article from last week on the current
> state of Neutrino communications:
>
> http://www.economist.com/node/21550242
>
> "The neutrinos themselves are created by smashing bunches of protons into=
a
> target made of graphite. They are detected roughly 1km away by researcher=
s
> [..] . By modulating the pulses of protons the group was able to send a
> message in binary that, when translated, read =93neutrino=94. =A0 "
>
>
> --
> Simon Lyall =A0| =A0Very Busy =A0| =A0Web: http://www.darkmere.gen.nz/
> "To stay awake all night adds a day to your life" - Stilgar | eMT.
--=20
-george william herbert
george.herbert@gmail.com
