All Articles Tagged As: ions
New understanding of how energy can be transferred in collisions at the molecular scale
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Scientists have spent 70 years trying to predict the properties of nuclei, but have had to settle for approximate models because computational techniques were not equal to the task.
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The universe as we currently know it is made up of three dimensions of space and one of time, but researchers are exploring the possibility of an extra dimension.
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A new calculation, reported in the January 25, 2008 issue of Physical Review Letters, confirms the six-quark theory of particle-anti-particle asymmetry. This is the first complete calculation of this phenomenon to employ a highly accurate description of the quarks that adds a fifth dimension beyond those of space and time.
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 | Forty years ago, mathematician Mark Kac asked the theoretical question, "Can one hear the shape of a drum?" ...> Full Article |
 | Imagine trying to catch up to something moving close to the speed of light - the fastest anything can move - and sending ahead information in time to make mid-path flight corrections. Impossible? Not quite. Physicists at the Relativistic Heavy Ion Collider (RHIC), a particle accelerator at the U.S. Department of Energy's Brookhaven National Laboratory, have achieved this tricky task - and the results may save the Lab money and time in their quest to understand the inner workings of the early universe. ...> Full Article |
A new laser under development at the Science and Technology Facilities Council's (STFC) Rutherford Appleton Laboratory in Oxfordshire will enable UK bio scientists to monitor biological processes at a millionth of a millionth of a second.
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For Kansas State University physics professor Uwe Thumm, confirmation of a theory about the behavior of small molecules became music to his ears -- literally. He and colleagues in Heidelberg, Germany, have shown how a hydrogen molecule responds to laser pulses by using the changing musical chord created by the molecule's vibrational motion.
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When the world's most powerful particle accelerator starts up later this year, exotic new particles may offer a glimpse of the existence and shapes of extra dimensions.
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New experiments address a barrier to efforts at developing computer networks that can run on light instead of electrons
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 | Researchers have used molecular vibrations, triggered by ultrafast pulses of terahertz radiation, to change a manganite crystal from an electrical insulator into a conductor. The ability to induce dramatic phase-changes in solid materials through select vibrations holds great promise for future exploitation of prized technological phenomena such as superconductivity and magnetoresistance. ...> Full Article |
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