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Latest Christian Roos Stories

Image 1 - Digital Quantum Simulator Realized
2011-09-04 05:49:45

  Almost two years ago Rainer Blatt's and Christan Roos' research groups from the University of Innsbruck recreated the properties of a particle moving close to speed of light in a quantum system. They encoded the state of the particle into a highly cooled calcium atom and used lasers to manipulate it according to equations proposed by the famous quantum physicist Paul Dirac. Thereby, the scientists were able to simulate so called Zitterbewegung (quivering motion) of relativistic...

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2010-09-22 07:45:00

A new endangered species of ape was discovered in the tropical rainforests of Asia by its unique song, German scientists said Tuesday. The new species of crested gibbon, considered one of the most endangered primate species in the world, is found around the rainforests of Vietnam, Laos and Cambodia. It is called the Northern Buffed-cheeked Gibbon, Nomascus annamensis, a statement by the German Primate Center (DPZ) said. Christian Roos, from the DPZ, said the discovery was a "minor...

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2010-03-10 12:19:15

A team of physicists headed by Christian Roos and Rainer Blatt from the Institute of Quantum Optics and Quantum Information of the Austrian Academy of Sciences realize a quantum walk in a quantum system with up to 23 steps. It is the first time that this quantum process using trapped ions is demonstrated in detail. When a hiker comes to a junction s/he has to decide which way to take. All of these decisions, eventually, lead the hiker to the intended destination. When the hiker forgot the...

2010-01-07 13:38:47

Quantum physicists simulate Dirac equation, 1 of the cornerstones in physics Researchers of the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck, Austria, used a calcium ion to simulate a relativistic quantum particle, demonstrating a phenomenon that has not been directly observable so far: the Zitterbewegung. They have published their findings in the current issue of the journal Nature. In the 1920s quantum mechanics was already established and in 1928 the British...

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2009-07-22 14:10:00

In comparison to classical physics, quantum physics predicts that the properties of a quantum mechanical system depend on the measurement context, i.e. whether or not other system measurements are carried out. A team of physicists from Innsbruck, Austria, led by Christian Roos and Rainer Blatt, have for the first time proven in a comprehensive experiment that it is not possible to explain quantum phenomena in non-contextual terms. The scientists report on their findings in the current issue...


Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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