News tagged with ytterbium clock
The tick-tock of the optical clock
(PhysOrg.com) -- UK's National Physical Laboratory time scientists have made an accurate measurement of the highly forbidden octupole transition frequency in an ytterbium ion, which could be used as the basis ...
Mar 29, 2012 |
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Ytterbium gains ground in quest for next-generation atomic clocks
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 ...
Aug 11, 2009 |
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Search results for ytterbium clock
New 'pendulum' for the ytterbium clock
The faster a clock ticks, the more precise it can be. Due to the fact that lightwaves vibrate faster than microwaves, optical clocks can be more precise than the caesium atomic clocks which presently determine ...
Mar 09, 2012 |
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Physicists create first 'frequency comb' to probe ultraviolet wavelengths
Physicists at JILA have created the first "frequency comb" in the extreme ultraviolet band of the spectrum, high-energy light less than 100 nanometers (nm) in wavelength. Laser-generated frequency combs are the most accurate ...
Feb 01, 2012 |
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Rice ties in race for atomic-scale breakthrough
Everybody loves a race to the wire, even when the result is a tie. The great irony is the ultraprecise clocks that could result from this competition could probably break any tie.
Nov 17, 2009 |
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Ytterbium's broken symmetry: The largest parity violations ever measured in an atom
Ytterbium was discovered in 1878, but until it recently became useful in atomic clocks, the soft metal rarely made the news. Now ytterbium has a new claim to scientific fame. Measurements with ytterbium-174, ...
Jul 22, 2009 |
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New Research Promises Better Atomic Clocks
(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 ...
Apr 22, 2009 |
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Collaboration helps make JILA strontium atomic clock 'best in class'
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 ...
Feb 14, 2008 |
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Strontium atomic clock demonstrates super-fine 'ticks'
Using an ultra-stable laser to manipulate strontium atoms trapped in a "lattice" made of light, scientists at JILA have demonstrated the capability to produce the most precise "ticks" ever recorded in an optical ...
Nov 30, 2006 |
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Tick Tock: Who Needs an Atomic Clock?
“Last year the Nobel Prize recognized the significance of this field with John Hall and Theodor Hänsch,” says Chris Oates of studying optical atomic clocks. “There are a lot of new ideas coming out, and we ...
Physics /
Mar 08, 2006 |
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Experimental atomic clock uses ytterbium 'pancakes'
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 ...
Physics /
Mar 06, 2006 |
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Ultra-cold temperature physics opens way to understanding and applications
Researchers doing ultra-cold temperature physics may not have to wear parkas, but they are producing the coldest temperatures ever and exploring model quantum systems that might lead to more accurate clocks and gyroscopes, ...
Physics /
Feb 21, 2005 |
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List of search results for ytterbium clock
