Search results for atomic clock:
Portable Precision: A New Type of Atomic Clock
Jun 11, 2009 |
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The most accurate atomic clocks in the world are based on the output of cesium atoms. These ultra-precise fountain clocks measure the frequency and time interval of seconds by using a fountain-like movement of cesium atoms. ...
Optical Atomic Clock: A long look at the captured atoms
Feb 05, 2008 |
4.3 / 5 (12) |
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Optical clocks might become the atomic clocks of the future. Their "pendulum", i.e. the regular oscillation process which each clock needs, is an oscillation in the range of the visible light. As its frequency is higher than ...
Portable Precision: A New Type of Atomic Clock
Dec 10, 2008 |
4.3 / 5 (7) |
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(PhysOrg.com) -- The most accurate atomic clocks in the world are based on the output of cesium atoms. These ultra-precise fountain clocks measure the frequency and time interval of seconds by using a fountain-like movement ...
A step closer to an ultra precise atomic clock
Apr 16, 2009 |
4.6 / 5 (14) |
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A clock that is so precise that it loses only a second every 300 million years - this is the result of new research in ultra cold atoms. The international collaboration is comprised of researchers from the ...
Optical atomic clock becomes portable
Sep 03, 2009 |
5 / 5 (5) |
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You imagine a clock to be different -- yet the optical table with its many complicated set-ups really is one. Optical clocks like the strontium clock in the Physikalisch-Technische Bundesanstalt (PTB) in Braunschweig ...
Ytterbium gains ground in quest for next-generation atomic clocks
Aug 11, 2009 |
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An experimental atomic clock based on ytterbium atoms is about four times more accurate than it was several years ago, giving it a precision comparable to that of the NIST-F1 cesium fountain clock, the nation's ...
Self-ticking oscillator could be next for portable atomic clocks
Dec 10, 2007 |
4.7 / 5 (31) |
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“Most conventional atomic clocks need a more conventional, non-atomic clock, like a quartz crystal, to keep them ticking,” William Happer tells PhysOrg.com. “We’ve developed a system that would be self-ticking, using a spec ...
New Research Promises Better Atomic Clocks
Apr 22, 2009 |
4.7 / 5 (9) |
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(PhysOrg.com) -- The most accurate timekeepers in the world are atomic clocks, which tell time based on the absorption of a very specific and unchanging microwave frequency, which induces electrons in an atom to “jump” from ...
Atomic fountain clocks are becoming still more stable
Mar 18, 2009 |
4 / 5 (1) |
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They are at present the most accurate clocks in the world: Caesium fountain clocks furnish the second accurate to 15 places after the decimal point. Until they reach this accuracy, caesium fountain clocks, however, need a ...
Atomic clock signals may be best shared by fiber-optics
Mar 02, 2007 |
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Time and frequency information can be transferred between laboratories or to other users in several ways, often using the Global Positioning System (GPS). But today's best atomic clocks are so accurate—neither gaining nor ...
Collaboration helps make JILA strontium atomic clock 'best in class'
Feb 14, 2008 |
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A next-generation atomic clock that tops previous records for accuracy in clocks based on neutral atoms has been demonstrated by physicists at JILA, a joint institute of the Commerce Department's National ...
Goal: developing the best atomic clock in the world
May 29, 2009 |
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They are masters at working with light: the scientists at the newly founded QUEST Institute at the Physikalisch-Technische Bundesanstalt (PTB), Braunschweig. And they want to work on some of the most exciting questions relating ...
Mercury atomic clock keeps time with record accuracy
Jul 14, 2006 |
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An experimental atomic clock based on a single mercury atom is now at least five times more precise than the national standard clock based on a "fountain" of cesium atoms, according to a paper by physicists ...
Scientists make atomic clock breakthrough
Oct 13, 2006 |
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University of Nevada, Reno researchers Andrei Derevianko, Kyle Beloy, and Ulyana Safronova sat down six months ago and began work on a calculation that will help the world keep better time.
Experimental atomic clock uses ytterbium 'pancakes'
Physics /
Mar 06, 2006 |
4.6 / 5 (20) |
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Scientists at the National Institute of Standards and Technology working with Russian colleagues have significantly improved the design of optical atomic clocks that hold thousands of atoms in a lattice made ...
