Does anyone have information on how exactly a atomic clock works?

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Discussion Overview

The discussion centers on the workings of atomic clocks, including their fundamental principles, measurement techniques, and the resources available for understanding them. Participants express interest in both theoretical and practical aspects, seeking detailed explanations and materials.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant requests detailed materials on atomic clocks, indicating familiarity with advanced quantum mechanics.
  • Another participant suggests a specific NIST webpage as a potential resource for information.
  • Some participants emphasize that the basic physics of atomic clocks involves measuring the frequency of atomic transitions accurately, noting that understanding the technical details does not necessarily require quantum mechanics.
  • There are mentions of review papers and technical reports from NIST and the journal "Review of Scientific Instruments" as potential sources for further information.
  • A participant expresses interest in how atomic clocks can be used to constrain variations in fundamental constants, such as the fine-structure constant.
  • Questions arise about the operational components of atomic clocks, specifically regarding the use of measured transition frequencies to drive oscillations and the method for tracking the passage of time.

Areas of Agreement / Disagreement

Participants generally agree on the basic concept of atomic clocks but express varying levels of understanding regarding the technical details and operational mechanisms. The discussion remains unresolved regarding the specifics of how atomic clocks function and the best resources for learning about them.

Contextual Notes

Some limitations include the lack of consensus on the detailed workings of atomic clocks and the varying levels of familiarity with the technical aspects among participants.

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Does anyone have information on how exactly a atomic clock works?
I have had advanced quantum mechanics courses so I am sure I wil understand it.
My problem is that I can't find any descriptive materials (with drawings), the wikipedia page is very vague about the different things.
So can anyone redirect me to online materials or books that explains atomic clocks?
 
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Is http://www.nist.gov/pml/div688/grp50/primary-frequency-standards.cfm" what you're looking for?
 
Last edited by a moderator:
Bill_K said:
Is http://www.nist.gov/pml/div688/grp50/primary-frequency-standards.cfm" what you're looking for?

Yeah, thanks. But are there sources with more details?
 
Last edited by a moderator:
The basic physics of an atomic clock is very simply, the idea is to simp[ly measure the frequency of a transition as accurately as possible and that is about it. There are of course a lot of technical details but you don't need QM to understand those.

There should be quite a few review papers and reports around. Have you tried looking for articles in say Review of Scientic Instruments?
I am sure you can also find info in some Technical reports from NIST and -if you want all the details- papers in Metrologia.
 
f95toli said:
The basic physics of an atomic clock is very simply, the idea is to simp[ly measure the frequency of a transition as accurately as possible and that is about it. There are of course a lot of technical details but you don't need QM to understand those.

There should be quite a few review papers and reports around. Have you tried looking for articles in say Review of Scientic Instruments?
I am sure you can also find info in some Technical reports from NIST and -if you want all the details- papers in Metrologia.

Thank you for your replies.
I am looking into atomic clocks because I want to know how you can use atomic clocks to get a constraint on the variation of e.g. the fine-structure alpha.
 
f95toli said:
The basic physics of an atomic clock is very simply, the idea is to simp[ly measure the frequency of a transition as accurately as possible and that is about it. There are of course a lot of technical details but you don't need QM to understand those.

There should be quite a few review papers and reports around. Have you tried looking for articles in say Review of Scientic Instruments?
I am sure you can also find info in some Technical reports from NIST and -if you want all the details- papers in Metrologia.

I can only find materials on how to measure the transition frequency accurately,
But after you have measured a given transition frequency very accurately, do you then use this frequency to drive an (Rabi) oscillation of the atomic levels? I mean, what does an atomic clock consist of? How do you know how much time has passed?
 

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