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Research Highlights

Published: Thu, 03/15/2018 - 1:15pm

We all know what a tenth of a second feels like. It’s a jiffy, a snap of the fingers, or a camera shutter click. But what does 14 billion years–the age of the universe–feel like?

JILA’s atomic clock has the precision to measure the age of the universe to within a tenth of a second. That sort of precision is difficult to intuit. Yet, JILA’s atomic clock, which is the most precise clock in the world, continues to improve its precision. The latest jump in precision, of nearly 50 percent, came about from a new perspective.

“The precision of our clock is now about two and half parts in 10 to the 19. Which is an almost impossibly tiny, tiny number to actually realize or understand,” says G. Edward Marti , a JILA postdoc in the Ye group, and integral member of JILA’s atomic clock team. “We know we’re not at the limit of this.”

The atomic clock is more than just an atom. It’s actually a system of thousands of atoms and a very impressive laser. This system works much like an old time-keeping system: a grandfather clock and the sun. A grandfather clock records time by swinging a pendulum back and forth. Similarly, the laser has a ticking electromagnetic field (...

Published: Mar 15, 2013

The Lehnert group has come up with a clever way to transport and store quantum information....

Published: Mar 13, 2013

Astrophysicist Fellow Jeff Linsky and his colleagues from CU’s Center for Astrophysics...

Published: Feb 15, 2013

Fellow Mitch Begelman and colleague Marek Sikora of the Polish Academy of Sciences have proposed...

Published: Feb 14, 2013

Researchers in the Regal group have gotten so good at using laser light to track the exact...

Published: Feb 11, 2013

Ana Maria Rey’s group is devising new theoretical methods to help experimentalists use ultracold...

Published: Feb 05, 2013

When experimental physicists at Penn State were unable to observe some of the predicted...

Published: Jan 22, 2013

The Cundiff group has taken an important step forward in the study of the quantum world. It has...

Published: Jan 07, 2013

Gold glitters because it is highly reflective, a quality once considered important for precision...

Published: Dec 19, 2012

The Ye and Bohn groups have made a major advance in the quest to prepare “real-world” molecules...

Published: Dec 18, 2012

When the Thompson group first demonstrated its innovative...

Published: Dec 12, 2012

The Nesbitt group has figured out the central role of “plasmon resonances” in light-induced...

Published: Dec 07, 2012

Graduate student Ben Knurr and Fellow Mathias Weber have added new insight into a catalytic...

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