What is the simplest, most fundamental clock? Physicist Holger Müller and his UC Berkeley colleagues have shown that a single atom is sufficient to measure time using its high-frequency matter wave. Conversely, the frequency ...
Quantum Physics
Jan 10, 2013
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A novel type of inter-particle binding predicted in 1970 and observed for the first time in 2006, is forming the basis for an intriguing kind of ultracold quantum chemistry. Chilled to nano-kelvin temperatures, cesium atoms ...
Quantum Physics
Sep 23, 2011
13
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(PhysOrg.com) -- While airplane and rocket experiments have proved that gravity makes clocks tick more slowly - a central prediction of Albert Einstein's general theory of relativity - a new experiment in an atom interferometer ...
General Physics
Feb 17, 2010
10
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(PhysOrg.com) -- Physicists at the National Institute of Standards and Technology have built an enhanced version of an experimental atomic clock based on a single aluminum atom that is now the world’s most precise clock, ...
Quantum Physics
Feb 4, 2010
10
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(PhysOrg.com) -- Considerable progresses made in controlling quantum gases open up a new avenue to study chemical processes. Rudolf Grimm’s research team at the Austrian Institute for Quantum Optics and Quantum Information ...
Quantum Physics
Feb 2, 2010
5
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(PhysOrg.com) -- Transitions are exciting. And at temperatures close to absolute zero, studying the transition from one quantum phase to another tantalizes physicists looking for a deeper understanding of the fundamental ...
Quantum Physics
Aug 20, 2009
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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, an isotope with ...
General Physics
Jul 22, 2009
11
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A team of Virginia Commonwealth University scientists has discovered a 'magnetic superatom' - a stable cluster of atoms that can mimic different elements of the periodic table - that one day may be used to create molecular ...
General Physics
Jun 15, 2009
7
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The Large Hadron Collider is an enormous particle accelerator whose 17-mile tunnel straddles the borders of France and Switzerland. A group of physicists at the University of Nevada, Reno has analyzed data from the accelerator ...
General Physics
Apr 28, 2009
13
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Scientists from the University of Innsbruck, Austria, led by Rudolf Grimm offer new insights into the extremely complex few-body problem. For the first time, the quantum physicists provide evidence of universal four-body ...
Quantum Physics
Apr 7, 2009
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