Chip-scale atomic clock

The heart of a minuscule atomic clock---believed to be 100 times smaller than any other atomic clock---has been demonstrated by scientists at the Commerce Department's National Institute of Standards and Technology (NIST), opening the door to atomically precise timekeeping in portable, battery-powered devices for secure wireless communications, more precise navigation and other applications.

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<p><a href="http://www.physorg.com/news976.html">Chip-scale atomic clock</a></p> <p>The heart of a minuscule atomic clock---believed to be 100 times smaller than any other <a class="directory" href="http://www.physorg.com/search/atomic clock">atomic clock</a>---has been demonstrated by scientists at the Commerce Department's National Institute of Standards and Technology (<a class="directory" href="http://www.physorg.com/search/NIST">NIST</a>), opening the door to atomically precise timekeeping in portable, battery-powered devices for secure <a class="directory" href="http://www.physorg.com/search/wireless">wireless</a> communications, more precise navigation and other applications. </p>