ANN ARBOR, Mich.— In an egg carton of laser light, University of Michigan physicists can trap giant Rydberg atoms with up to 90 percent efficiency, an achievement that could advance quantum computing and terahertz imaging, among other applications.
Highly excited Rydberg atoms can be 1,000 times larger than their ground state counterparts. Nearly ionized, they cling to faraway electrons almost beyond their reach. Trapping them efficiently is an important step in realizing their potential, the researchers say.
Researchers at the UA-led Center for Integrated Access Networks, the largest optical research center in the U.S., are developing methods to improve transmission speed, efficiency and reliability of Internet content, including everything from cell phone calls or texts to emails and television.
If you’ve ever received an email or text hours after it was sent and privately raged at having missed a deadline, or twiddled your thumbs while waiting for a webpage to load, then you’ve been a victim of Internet latency.
Latency can occur for a number of reasons associated with disruption of an information lane such as an electronic wire or fiber optic cable, or from an overload of Internet-based messaging that can occur with increased network traffic. (more…)
In a paradox typical of the quantum world, JILA scientists have eliminated collisions between atoms in an atomic clock by packing the atoms closer together. The surprising discovery, described in the Feb. 3 issue of Science Express, can boost the performance of experimental atomic clocks made of thousands or tens of thousands of neutral atoms trapped by intersecting laser beams
JILA is jointly operated by the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder. (more…)
