[time-nuts] Fast than light neutrino

Magnus Danielson magnus at rubidium.dyndns.org
Sun Sep 25 20:05:08 UTC 2011

On 25/09/11 21:14, Javier Serrano wrote:
> On Sun, Sep 25, 2011 at 10:07 AM, Magnus Danielson<
> magnus at rubidium.dyndns.org>  wrote:
>> I assumed so from the statements relating to time, in particular the PTB
>> time transfer test proving a 2,3 ns difference. Which still doesn't satisfy
>> my curiosity.
> We still don't have the final PTB report. Here's a preliminary one:
> http://dl.dropbox.com/u/13409775/ptb_preliminary_report.pdf

Many thanks. Will read.

>> A 60 ns offset between the sites would account for the "missing time".
>> Similarly a 18 m shorter distance would also account for the "missing
>> time". Due to the large distance I would start in that end to ensure it
>> works.
> The geodesy effort was led by others. I am told they did things very
> carefully.

I am sure they where. It's both interesting to see how they went on 
doing it, as well as seeing if one can hack it into pieces. Part of the 
process I guess.

>>>> Do you have direct fiber between the locations?
>>> You mean between CERN and Gran Sasso? No, but that's certainly something
>>> we
>>> could explore for the future.
>> A fiber-based time-transfer would be nice complementary as it would provide
>> an independent timing path.
> Any ideas on how to proceed? This is unknown territory for me.

Getting a connection setup should not be too hard, but it depends on 
number of details, but it is being done on commercial basis. A two-way 
transfer system (a few different options may be available) can then use 
this connection.


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