[time-nuts] new Al atomic clock publication

Bob Camp lists at cq.nu
Sat Feb 6 15:42:34 UTC 2010


A mixing scheme 20 years in the making ....


On Feb 6, 2010, at 9:49 AM, Magnus Danielson wrote:

> Chris Caudle wrote:
>> No discussion on the new Al based atomic clock paper from NIST?
>> http://arxiv.org/PS_cache/arxiv/pdf/0911/0911.4527v2.pdf
>> "Here we describe an Al+ ion clock with an inaccuracy of 8.6×10−18."
>> Doesn't get more nutty than that.
> Not matching any of my counters all that well... 1,121 PHz with about 8 mHz of line-width. No wonder they had an elaborate mix-down setup just to compare the clocks.
> Cheers,
> Magnus
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