Tag Archives: university of colorado boulder

JILA researchers discover atomic clock can simulate quantum magnetism

Researchers at JILA have for the first time used an atomic clock as a quantum simulator, mimicking the behavior of a different, more complex quantum system. 

Atomic clocks now join a growing list of physical systems that can be used for modeling and perhaps eventually explaining the quantum mechanical behavior of exotic materials such as high-temperature superconductors, which conduct electricity without resistance. All but the smallest, most trivial quantum systems are too complicated to simulate on classical computers, hence the interest in quantum simulators. Sharing some of the features of experimental quantum computers—a hot research topic—quantum simulators are “special purpose” devices designed to provide insight into specific challenging problems.  (more…)

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Some Earthquakes Expected Along Rio Grande Rift in Colorado And New Mexico, New Study Says

The Rio Grande Rift, a thinning and stretching of Earth’s surface that extends from Colorado’s central Rocky Mountains to Mexico, is not dead but geologically alive and active, according to a new study involving scientists from the University of Colorado Boulder’s Cooperative Institute for Research in Environmental Sciences.

“We don’t expect to see a lot of earthquakes, or big ones, but we will have some earthquakes,” said CU-Boulder geological sciences Professor Anne Sheehan, also a fellow at CIRES. The study also involved collaborators from the University of New Mexico, New Mexico Tech, Utah State University and the Boulder-headquartered UNAVCO. The Rio Grande Rift follows the path of the Rio Grande River from central Colorado roughly to El Paso before turning southeast toward the Gulf of Mexico. (more…)

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Ancient Bronze Artifact from East Asia Unearthed at Alaska Archaeology Site

A team of researchers led by the University of Colorado Boulder has discovered the first prehistoric bronze artifact made from a cast ever found in Alaska, a small, buckle-like object found in an ancient Eskimo dwelling and which likely originated in East Asia.

The artifact consists of two parts — a rectangular bar, connected to an apparently broken circular ring, said CU-Boulder Research Associate John Hoffecker, who is leading the excavation project. The object, about 2 inches by 1 inch and less than 1 inch thick, was found in August by a team excavating a roughly 1,000-year-old house that had been dug into the side of a beach ridge by early Inupiat Eskimos at Cape Espenberg on the Seward Peninsula, which lies within the Bering Land Bridge National Preserve. (more…)

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CU-Boulder Python Study May Have Implications for Human Heart Health

A surprising new University of Colorado Boulder study shows that huge amounts of fatty acids circulating in the bloodstreams of feeding pythons promote healthy heart growth, results that may have implications for treating human heart disease.

CU-Boulder Professor Leslie Leinwand and her research team found the amount of triglycerides — the main constituent of natural fats and oils — in the blood of Burmese pythons one day after eating increased by more than fiftyfold. Despite the massive amount of fatty acids in the python bloodstream there was no evidence of fat deposition in the heart, and the researchers also saw an increase in the activity of a key enzyme known to protect the heart from damage. (more…)

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When It Comes To Charitable Giving, People Respond To Their Immediate Emotions, Cu Study Says

When considering giving money to humanitarian crises people often donate in response to events that grab their immediate emotions, according to a recent study by researchers at the University of Colorado Boulder and Dresden University of Technology in Germany.

“The question we wanted to answer with our study is what is the impact of people’s emotions on their decisions to make charitable donations,” said CU-Boulder psychology Professor Leaf Van Boven, who co-authored the study. “We demonstrated that people act on what is immediately emotionally arousing to them. In other words, they respond to what makes them upset in the here and now.” (more…)

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Arctic Sea Ice Reaches Minimum 2011 Extent, the Second Lowest in the Satellite Record

The blanket of sea ice that floats on the Arctic Ocean appears to have reached its lowest extent for 2011, the second lowest recorded since satellites began measuring it in 1979, according to the University of Colorado Boulder’s National Snow and Ice Data Center.

The Arctic sea ice extent fell to 1.67 million square miles, or 4.33 million square kilometers on Sept. 9, 2011. This year’s minimum of 1.67 million square miles is more than 1 million square miles below the 1979-2000 monthly average extent for September — an area larger than Texas and California combined. (more…)

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Farthest, Largest Water Mass in Universe Found, says Study Involving Caltech, CU-Boulder

An international team of astronomers led by the California Institute of Technology and involving the University of Colorado Boulder has discovered the largest and farthest reservoir of water ever detected in the universe.

The distant quasar is one of the most powerful known objects in the universe and has an energy output of 1,000 trillion suns — about 65,000 times that of the Milky Way galaxy. The quasar’s power comes from matter spiraling into the central supermassive black hole, estimated at some 20 billion times the mass of our sun, said study leader Matt Bradford of Caltech and NASA’s Jet Propulsion Laboratory in Pasadena, Calif. (more…)

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