Latest University of Innsbruck Stories

Human Contribution To Glacier Mass Loss Increasing
2014-08-18 03:43:32

University of Innsbruck By combining climate and glacier models, scientists headed by Ben Marzeion from the University of Innsbruck have found unambiguous evidence for anthropogenic glacier mass loss in recent decades. In a paper published in Science, the researchers report that about one quarter of the global glacier mass loss during the period of 1851 to 2010 is attributable to anthropogenic causes. The fraction of human contribution increased steadily and accelerated to almost two...

artificial intelligence and quantum mechanics
2014-08-18 04:35:41

redOrbit Staff & Wire Reports - Your Universe Online The decision-making capabilities of artificial intelligence (AI) technology could be enhanced using quantum physics, researchers from the Austrian Academy of Sciences, the University of Innsbruck and the Complutense University in Madrid claim in a recently-published paper in the journal Physical Review X. In the study, physical theorist Hans Briegel from the Institute for Quantum Optics and Quantum Information of the Austrian...

2014-06-16 09:20:53

University of Innsbruck Even computers are error-prone. The slightest disturbances may alter saved information and falsify the results of calculations. To overcome these problems, computers use specific routines to continuously detect and correct errors. This also holds true for a future quantum computer, which will require procedures for error correction as well: "Quantum phenomena are extremely fragile and error-prone. Errors can spread rapidly and severely disturb the computer," says...

Quantum Chaotic Behavior In Ultracold Gas Discovered
2014-03-13 15:02:29

University of Innsbruck The team of Francesca Ferlaino, Institute for Experimental Physics of the University of Innsbruck, Austria, has experimentally shown chaotic behavior of particles in a quantum gas. "For the first time we have been able to observe quantum chaos in the scattering behavior of ultracold atoms," says an excited Ferlaino. The physicists used random matrix theory to confirm their results, thus asserting the universal character of this statistical theory. Nobel laureate...

Detection Of Single Photons Through Quantum Entanglement
2013-07-08 10:47:20

University of Innsbruck Almost 200 years ago, Bavarian physicist Joseph von Fraunhofer discovered dark lines in the sun's spectrum. It was later discovered that these spectral lines can be used to infer the chemical composition and temperature of the sun's atmosphere. Today we are able to gain information about diverse objects through light measurements in a similar way. Because often very little light needs to be detected for this, physicists are looking for ever more sensitive...

Observing Competition In The Quantum World
2013-05-20 13:26:00

University of Innsbruck "When water boils, its molecules are released as vapor. We call this change of the physical state of matter a phase transition," explains Sebastian Diehl from the Institute of Theoretical Physics at the University of Innsbruck. Together with his colleagues from the Institute for Experimental Physics and the theorist Markus Mueller from the Complutense University of Madrid, he studied the transition between two quantum mechanical orders in a way never before...

Second Sound Observed In A Quantum Gas
2013-05-16 08:27:02

University of Innsbruck Below a critical temperature, certain fluids become superfluid and lose internal friction. In addition, fluids in this state conduct heat extremely efficiently, with energy transport occurring in a distinct temperature wave. Because of the similarities to a sound wave, this temperature wave is also called second sound. To explain the nature of superfluids, the famous physicist Lev Landau developed the theory of two-fluid hydrodynamics in Moscow in 1941. He assumed...

Playing Quantum Tricks By Reversing Measurements
2013-02-15 14:02:48

University of Innsbruck A team of physicists at the University of Innsbruck, Austria, performed an experiment that seems to contradict the foundations of quantum theory — at first glance. The team led by Rainer Blatt reversed a quantum measurement in a prototype quantum information processor. The experiment is enabled by a technique that has been developed for quantum error correction in a future quantum computer. Measurements on quantum systems have puzzled generations of...

Anthropogenic Climate Change Leads To Melting Glaciers And Rising Sea Level
2012-11-14 15:22:41

University of Innsbruck Between 1902 and 2009, melting glaciers contributed 11 cm to sea level rise. They were therefore the most important cause of sea level rise. This is the result of a new assessment by scientists of the University of Innsbruck. They numerically modeled the changes of each of the world´s 300 000 glaciers. Until 2100, glaciers could lead to an additional 22 cm of sea level rise. Since 1900 the global sea level has risen by approximately 20 cm. Melting glaciers...

Elusive Quasiparticles Understood
2012-05-23 12:45:40

Ultracold quantum gases are an ideal experimental model system to simulate physical phenomena in condensed matter. In these gases, many-body states can be realized under highly controlled conditions and interactions between particles are highly tuneable. A research group led by Wittgenstein awardee Rudolf Grimm and START awardee Florian Schreck have now realized and comprehensively analyzed repulsive polarons for the first time. The scientists from the Institute of Quantum Optics and Quantum...

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This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'