麻豆视频

David J. Wineland, a lecturer in the 麻豆视频 physics department, has won the 2012 Nobel Prize in physics.

Wineland is a physicist with the National Institute of Standards and Technology in Boulder and internationally recognized for developing the technique of using lasers to cool ions to near absolute zero.

His experiments have been used to test theories in quantum physics and may lead to the development of quantum computers. He shared the prize with Serge Haroche of France.

As a lecturer in the Department of Physics at CU-Boulder since 2000, Wineland oversees graduate students who work in his laboratory.

The Nobel Prize committee stated that 听both scientists 鈥渉ave opened the door to a new era of experimentation with quantum physics by demonstrating the direct observation of individual quantum particles without destroying them.鈥�

For single particles of light or matter, the laws of classical physics cease to apply and quantum physics takes over, the committee noted, adding. 鈥淏ut single particles are not easily isolated from their surrounding environment and they lose their mysterious quantum properties as soon as they interact with the outside world. Thus many seemingly bizarre phenomena predicted by quantum physics could not be directly observed, and researchers could only carry out thought experiments that might in principle manifest these bizarre phenomena.鈥�

Both Haroche and Wineland and their research groups have measured and controlled very fragile quantum states that were previously thought inaccessible for direct observation, the Nobel committee stated. The new methods allow them to examine, control and count the particles.

鈥淭heir ground-breaking methods have enabled this field of research to take the very first steps towards building a new type of super fast computer based on quantum physics. Perhaps the quantum computer will change our everyday lives in this century in the same radical way as the classical computer did in the last century,鈥� the committee continued.

The research has also facilitated the building of extremely precise clocks that could become the future basis for a new standard of time, with more than hundred-fold greater precision than present-day caesium clocks.

In a telephone interview with Nobel Media early Tuesday morning, Wineland noted the historical reason scientists worked to build more-accurate clocks.听鈥淭he better clocks we have, the better navigation we can do,鈥� he said, adding that precise timing is also useful in communications.

Wineland brushed off the notion that he was 鈥渢he first to observe this new world of quantum states.鈥� Wineland said, 鈥淚 wouldn鈥檛 put myself in the first. Maybe we鈥檙e among the first. But there are many good people working on these things. It鈥檚 certainly a big enterprise by now.鈥�

At the same time, Wineland acknowledged the thrill of woking in what might be called uncharted territory. 鈥淚t鈥檚 generally true in science, to be near the leading edge, I suppose. It鈥檚 always been great, really exciting to be in this field.鈥�

Paul Beale, professor and chair of the CU-Boulder Department of Physics, said the department was 鈥渢hrilled鈥� about Wineland鈥檚 Nobel Prize.

鈥淗is research using trapped ions to study quantum entanglement, now recognized for the groundbreaking work it is by a Nobel Prize, acknowledges his great successes,鈥� Beale said. 鈥淒avid is an important member of our graduate faculty who has been both a key graduate adviser for our students and a strong member of our graduate student recruiting team. His laboratory at NIST has allowed our graduate students to engage in world-class research, and it鈥檚 an honor for our department to be associated with him.鈥�

Wineland learned of the award in a pre-dawn call from Stockholm.听鈥淚 was sleeping, and my wife got the call and woke me up,鈥� he said.听鈥淚t was a wonderful surprise, of course.听We probably won鈥檛 go back to sleep for a while.鈥�

In a late-morning news conference, Wineland said someone pointed him to a web site where the Nobel Prize was on the same page as news about Lady Gaga. 鈥淪o I guess I have really arrived.鈥�

Born 1944 in Milwaukee, Wisc., Wineland earned his Ph.D. in 1970 from Harvard University. He is the 2007 recipient of the National Medal of Science.

To view photos from the news conference at NIST鈥檚 Boulder labs, see听

罢丑别听听contributed to this report.