Path: ...!Xl.tags.giganews.com!local-1.nntp.ord.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Tue, 07 May 2024 16:17:26 +0000 From: Joe Gwinn Newsgroups: sci.electronics.design Subject: Re: OT: Atomic nucleus excited with laser: a breakthrough after decades Date: Tue, 07 May 2024 12:17:24 -0400 Message-ID: References: User-Agent: ForteAgent/8.00.32.1272 MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Lines: 28 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-qiJfWhGFzWJFQ8TVSAs2SH5gJ90NXJInKFmOai8YLAcSGDJTF9R4bKryMdjgpblKEHBqm6I+5D6Gxz1!viNJM6MQyO9hSw5CHtgE8no/xgt1uifT9WCLboJld3hAj0pSHhoA0KqFUvidppyGehuDn8Q= X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 Bytes: 2209 On Tue, 7 May 2024 16:26:27 +0200, Jeroen Belleman wrote: >On 5/7/24 15:35, Martin Brown wrote: >> On 07/05/2024 06:06, Jan Panteltje wrote: >>> Atomic nucleus excited with laser: a breakthrough after decades >>>   >>>    The 'thorium transition', which has been sought after for decades, >>>    has now been excited for the first time with lasers. >>>    This paves the way for revolutionary high precision technologies, >>> including nuclear clocks >> >> I wonder what the Q value for stimulated nuclear emission is? >> > >They state a centre frequency of roughly 2 PHz and a decay time >of 630s, which would put the Q in the 1e19 ballpark. Prodigious. >No wonder it was hard to find. The Time guys have been looking for this forever, so to speak. It's the only atomic kernel transition with any degree of coupling to electromagnetic radiation. This will be orders of magnitude better than such as lattice clocks. There will be a flood of papers. Joe Gwinn