News articles tagged with 'caesium'
NIST's second 'quantum logic clock' based on aluminium ion is now world's most precise clock
— 7 Feb 2010 14:44 | TechnologyPhysicists at the National Institute of Standards and Technology (NIST) have built an enhanced version of an experimental atomic clock based on a single aluminium atom that is now the…
A Venus flytrap for nuclear waste
— 27 Jan 2010 11:25 | BiologyNot every object is food to a Venus flytrap. Like the carnivorous plant, a new material developed at Northwestern University permanently traps only its desired prey, the radioactive…
From now on, 4 PTB primary atomic clocks will contribute to UTC
— 23 Dec 2009 12:47 | PhysicsThe world's best caesium atomic clocks control Coordinated Universal Time (UTC), an atomic time scale on which the time zones used in everyday life are based. But also in navigation…
Optical atomic clock becomes portable
— 3 Sep 2009 18:00 | PhysicsYou 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…
Ytterbium gains ground in quest for next-generation atomic clocks
— 12 Aug 2009 12:46 | TechnologyAn 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 caesium…
Ytterbium's broken symmetry
— 23 Jul 2009 16:52 | PhysicsYtterbium 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…
Bonn physicists take first step towards super-fast search algorithms for quantum computers
— 10 Jul 2009 13:29 | PhysicsWhen you toss a coin, you either get heads or tails. By contrast, things are not so definite at the microcosmic level. An atomic 'coin' can display a superposition of heads and tails…
Atomic fountain clocks are becoming still more stable
— 19 Mar 2009 12:20 | PhysicsCaesium fountains are more accurate than 'normal' atomic caesium clocks, because in fountains the caesium atoms are cooled down with the aid of laser beams and come ever slower - from…
ESA designs its smallest ever space engine to push back against sunshine
— 11 Mar 2009 13:10 | TechnologyThis month an ESA team is preparing to test the performance of the smallest yet most precisely controllable engine ever built for space, sensitive enough to counteract the force of…
Collaboration helps make JILA strontium atomic clock 'best in class'
— 14 Feb 2008 19:00 | PhysicsA 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…
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