Latest Rudolf Grimm Stories

2013-06-27 23:53:07

Groundbreaking BEC Experiments on Space Station Boulder, Colorado (PRWEB) June 26, 2013 Bose-Einstein condensates will be produced in space using a system developed and manufactured in Boulder, Colorado. ColdQuanta has already supplied the Jet Propulsion Laboratory (JPL) with elements of its physics package destined to create Bose-Einstein condensates (BEC) in the Cold Atom Lab on the International Space Station (ISS). At the heart of the system, which simplifies and expedites the...

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...

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...

2011-09-24 09:07:41

A novel type of inter-particle binding predicted in 1970 and observed for the first time in 2006, is forming the basis for an intriguing kind of ultracold quantum chemistry. Chilled to nano-kelvin temperatures, cesium atoms---three at a time---come together to form a bound state hundreds or even thousands of times larger than individual atoms. Unlike the case of ordinary atoms, wherein electrons are bound to a nucleus in a spectrum of energy levels on the order of an electron volt (that is,...

2011-03-18 10:55:00

Quantum physicists pave the way for investigating new states of matter in ultracold atom mixtures Scientists of the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck, Austria, have reached a milestone in the exploration of quantum gas mixtures. In an international first, the research group led by Rudolf Grimm and Florian Schreck has succeeded in producing controlled strong interactions between two fermionic elements - lithium-6 and potassium-40. This model system not...

2010-07-29 09:44:50

Fundamental physical phenomena demonstrated for the first time In an international first, physicists of the University of Innsbruck, Austria have experimentally observed a quantum phenomenon, where an arbitrarily weak perturbation causes atoms to build an organized structure from an initially unorganized one. The scientific team headed by Hanns-Christoph Nägerl has published a paper about quantum phase transitions in a one dimensional quantum lattice in the scientific journal Nature....

2010-02-02 09:51:42

First direct observation of exchange process in quantum gas Considerable progresses made in controlling quantum gases open up a new avenue to study chemical processes. Rudolf Grimm's research team has now succeeded in directly observing chemical exchange processes in an ultracold sample of cesium atoms and Feshbach molecules. They report on their findings in the journal Physical Review Letters. Complex processes, which to a large extent cannot be observed directly, determine when chemical...

2009-11-09 08:22:52

Cooling strontium could lead to increasingly precise clocks, quantum computers and ultracold chemistry Two independent teams have, for the first time, created Bose-Einstein condensates of strontium atoms. The ability to cool strontium to very low temperatures and control its motion could lead to increasingly precise clocks and may advance our progress toward quantum computers and novel experiments in ultracold chemistry. The new Bose-Einstein condensate is reported in two papers in Physical...

2009-09-03 23:30:00

Realization of an excited, strongly correlated many-body phase Hanns-Christoph Naegerl's research group has investigated how ultracold quantum gases behave in lower spatial dimensions. They successfully realized an exotic state, where, due to the laws of quantum mechanics, atoms align along a one-dimensional structure. A stable many-body phase with new quantum mechanical states is thereby produced even though the atoms are usually strongly attracted which would cause the system to collapse....

2009-04-07 12:53:21

In 2007 and 2008 two groups of theoretical physicists (Hammer and Platter, and von Stecher, D'Incao, and Greene) predicted the existence of universal four-body states that are closely tied to Efimov trimer states. Now, a team of scientists of the Institute for Experimental Physics of the University of Innsbruck, Austria, has proven these states experimentally in an ultracold gas of cesium atoms. At particular energy separations from an Efimov state, they found two four-body loss resonances,...

Word of the Day
  • Remarkable; prodigious.
  • Audacious; gutsy.
  • Completely; extremely.
  • Audaciously; boldly.
  • Impressively great in size; enormous; extraordinary.
This word is probably from the dialectal 'boldacious,' a blend of 'bold' and 'audacious.'