Latest Atomic clock Stories

Connecting Clocks To Measure Height
2013-10-02 11:10:16

Physikalisch-Technische Bundesanstalt (PTB) Researchers from Garching and Braunschweig transport frequencies with high precision over almost 2000 km - important, among other things, for geodesy How far above sea level is a place located? And where exactly is "sea level"? It is one objective of the geodesists to answer these questions with 1 cm accuracy. Conventional measurement procedures or GPS technologies via satellites, however, reach their limits here. Now optical atomic clocks...

2013-09-05 23:28:22

Science Community now has entire system available to help drive applications into BEC and Ultracold Atoms. Boulder, CO (PRWEB) September 05, 2013 Notoriously difficult, expensive and time consuming to set up, experiments to create Bose-Einstein Condensates (atoms cooled to temperatures very close to Absolute Zero) have become vastly easier yet much smaller in size. When Eric Cornell and Carl Wieman first demonstrated the existence of as Bose-Einstein Condensate (BEC), a form of ultracold...

New Stability Record Set By NIST Ytterbium Atomic Clocks
2013-08-22 14:45:09

National Institute of Standards and Technology (NIST) A pair of experimental atomic clocks based on ytterbium atoms at the National Institute of Standards and Technology (NIST) has set a new record for stability. The clocks act like 21st-century pendulums or metronomes that could swing back and forth with perfect timing for a period comparable to the age of the universe. NIST physicists report in the Aug. 22 issue of Science Express that the ytterbium clocks' tick is more stable than...

Researchers Discover Atomic Clock Can Simulate Quantum Magnetism
2013-08-09 11:33:49

National Institute of Standards and Technology (NIST) Researchers at JILA have for the first time used an atomic clock as a quantum simulator, mimicking the behavior of a different, more complex quantum system. Atomic clocks now join a growing list of physical systems that can be used for modeling and perhaps eventually explaining the quantum mechanical behavior of exotic materials such as high-temperature superconductors, which conduct electricity without resistance. All but the...

2013-07-11 16:11:06

Laser frequency combs-high-precision tools for measuring different colors of light in an ever-growing range of applications such as advanced atomic clocks, medical diagnostics and astronomy-are not only getting smaller but also much easier to make. Physicists at the National Institute of Standards and Technology (NIST) can now make the core of a miniature frequency comb in one minute. Conventional microfabrication techniques, by contrast, may require hours, days or even weeks. The NIST...

Redefining Time With Innovative Optical Lattice Clock
2013-07-10 12:56:58

Michael Harper for redOrbit.com - Your Universe Online Atomic clocks are the standard in time, hailed as the most accurate and often used to keep other clocks on time. Now, a new kind of clock aims not only to replace atomic clocks as the most accurate, but to redefine the second as a measurement of time as well. The new device, called an optical lattice clock (OLC) is, theoretically, three times more accurate than current atomic clocks. In computer models, these clocks lost only one...

Device For Portable, Ultra-precise Clocks And Quantum Sensors Developed By Scientists
2013-05-09 10:59:35

University of Strathclyde In a joint project between the Universities of Strathclyde and Glasgow, Imperial College London and the National Physical Laboratory, researchers have developed a portable way to produce ultracold atoms for quantum technology and quantum information processing. Their research has been published in the journal Nature Nanotechnology, where it is featured on the front cover. Many of the most accurate measurement devices, including atomic clocks, work by...

Berkeley Physicist Uses Atomic Matter To Tell Time
2013-01-11 15:06:34

Brett Smith for redOrbit.com - Your Universe Online In a groundbreaking new study, physicists from the University of California, Berkeley have used atomic matter to measure time. According to a new report in the journal Science, Holger Müller and his Berkeley colleagues describe how to tell time using a cesium atom and the theory that matter can be both a particle and a wave. "When you make a grandfather clock, there is a pendulum and a clockwork that counts the...

Better Accuracy For Optical Strontium Clock
2013-01-03 11:30:03

Alpha Galileo Foundation PTB measures the influence of the ambient temperature on strontium atoms for the first time — measurement uncertainty reduced by one order of magnitude An optical clock with neutral strontium atoms is considered one of the top candidates for the definition of a "new" second. The probabilities have increased considerably, since its frequency will now be determined more accurately (probably by an order of magnitude). Scientists of the Physikalisch-Technische...

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