Thousands of ultracold atoms made shaped into pancake shapes and stacked form an atomic clock that has been used to measure time dilation on the smallest scale ever
, such as improving accuracy for the Global Positioning System , which uses the precise timing of atomic clocks to calculate distance.
Another research group at the University of Wisconsin-Madison has also produced a new atomic clock set-up. Shimon Kolkowitz and his colleagues used comparisons between six different strontium atomic clocks to measure a second. This comparative model, known as a multiplex clock, means the team can use a less stable laser than the JILA group’s clock, but still achieve a very high level of precision: the clock would lose just 1 second every 300 billion years.
“It’s a nice demonstration that you can use lasers with much lower performance, which are more portable and more robust, and still do these kinds of clock comparisons, with pretty amazing levels of precision,” says Kolkowitz. His team’s clock measures the relative differences between atomic clocks, so it is well suited to pinning down hard-to-measure effects that propagate through space, such as gravitational waves or dark matter. The group is now looking at measuring gravitational redshift using the multiplex clock on similar scales to the JILA team’s clock.
United States Latest News, United States Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
How light is a neutrino? The answer is closer than everLatest effort to weigh the elusive particle produces a more precise estimate of its upper limit.
Read more »
Atomic clouds stabilized to measure dilation of timeGravitational redshift measured in an atomic cluster.
Read more »
Snoop Dogg smokes weed right before star-studded Super Bowl 2022 halftime showBefore taking the stage for Sunday’s epic Super Bowl 2022 halftime show, Snoop Dogg had something of a pregame warmup.
Read more »
Potato nutrition facts & health benefitsPotato nutrition facts show that it can be a very healthy part of a balanced diet if prepared in the right ways.
Read more »
Cynthia Nixon Defended Miranda Against Critiques Of Her Choices In 'And Just Like That...''A feminist show...shouldn't be propaganda showing women as these sensible, wise, kind, attractive people.'
Read more »