News tagged with energy levels

Carbon dioxide emissions reach record high

Emissions of heat-trapping carbon dioxide reached an all-time high last year, further reducing the chances that the world could avoid a dangerous rise in global average temperature by 2020, according to the International ...

Space & Earth / Environment

created May 29, 2012 | popularity 4 / 5 (7) | comments 15

A magnetic approach to lattices

(Phys.org) -- JQI experimentalists under the direction of Ian Spielman are in the business of using lasers to create novel environments for neutral atoms. For instance, this research group previously enticed ...

Physics / General Physics

created May 22, 2012 | popularity 5 / 5 (4) | comments 0 | with audio podcast

Scientists view a quantum jump in real time

(PhysOrg.com) -- For more than two decades, scientists have been "watching" electrons in atoms make the jump between energy levels in real time. "Atoms have energy levels, and when electrons 'jump' from one level to another, ...

Physics / General Physics

created Apr 11, 2011 | popularity 4.5 / 5 (29) | comments 3 | with audio podcast feature

Computer simulations suggest graphynes may be even more useful than graphene

(PhysOrg.com) -- The past several years have seen a virtual explosion in the amount of research dedicated to graphene and as a result there has been a nearly constant stream of news pertaining to new discoveries ...

Nanotechnology / Nanomaterials

created Mar 05, 2012 | popularity 4.8 / 5 (10) | comments 26 | with audio podcast report

Researchers resolve controversy over gallium manganese arsenide that could boost spintronic performance

A long-standing controversy regarding the semiconductor gallium manganese arsenide, one of the most promising materials for spintronic technology, looks to have been resolved. Researchers with the Lawrence ...

Physics / Condensed Matter

created Feb 27, 2012 | popularity 4.4 / 5 (9) | comments 0 | with audio podcast

CERN scientists confine antihydrogen atoms for 1000 seconds

(PhysOrg.com) -- Seventeen minutes may not seem like much, but to physicists working on the Antihydrogen Laser Physics Apparatus (ALPHA) project at the CERN physics complex near Geneva, 1000 seconds is nearly ...

Physics / General Physics

created May 04, 2011 | popularity 4.6 / 5 (34) | comments 39 | with audio podcast report

New type of nuclear fission discovered

(PhysOrg.com) -- Nuclear fission, or the splitting of a heavy nucleus, usually results in symmetrical fragments of the same mass. Physicists attribute the few known examples of fission that is asymmetric to ...

Physics / General Physics

created Dec 06, 2010 | popularity 4.7 / 5 (52) | comments 79 | with audio podcast report

Theoretical physicists offer explanation of how bacteria might generate radio waves

(PhysOrg.com) -- Four theoretical physicists, led by Allan Widom, of Northeastern University, have published a paper in arXiv, where they show a possible way for some bacteria to produce radio waves. Taking ...

Physics / General Physics

created Apr 28, 2011 | popularity 4.8 / 5 (13) | comments 13 | with audio podcast report

'Air laser' may sniff bombs, pollutants from a distance (w/ Video)

Princeton University engineers have developed a new laser sensing technology that may allow soldiers to detect hidden bombs from a distance and scientists to better measure airborne environmental pollutants ...

Physics / General Physics

created Jan 28, 2011 | popularity 4.1 / 5 (17) | comments 6 | with audio podcast

A breakthrough for terahertz semiconductor lasers

(PhysOrg.com) -- Potential applications, says an engineering professor, include disease diagnosis and detection of concealed explosives.

Physics / General Physics

created Jan 13, 2011 | popularity 3.5 / 5 (11) | comments 3 | with audio podcast

Researchers hear puzzling new physics from graphene quartet's quantum harmonies

Using a one-of-a-kind instrument designed and built at the National Institute of Standards and Technology, an international team of researchers have "unveiled" a quartet of graphene's electron states and discovered ...

Physics / General Physics

created Sep 08, 2010 | popularity 4.9 / 5 (14) | comments 17 | with audio podcast

New picture of atomic nucleus emerges

(PhysOrg.com) -- When most of us think of an atom, we think of tiny electrons whizzing around a stationary, dense nucleus composed of protons and neutrons, collectively known as nucleons. A collaboration between ...

Physics / General Physics

created Mar 02, 2012 | popularity 4.3 / 5 (29) | comments 14 | with audio podcast

Graphene Yields Secrets to Its Extraordinary Properties

(PhysOrg.com) -- Applying innovative measurement techniques, researchers from the Georgia Institute of Technology and the National Institute of Standards and Technology have directly measured the unusual energy ...

Nanotechnology / Nanophysics

created May 14, 2009 | popularity 4.8 / 5 (26) | comments 0

Rice physicists find reappearing quantum trios

Using atoms at temperatures colder than deep space, Rice University physicists have delivered overwhelming proof for a once-scoffed-at theory that's become a hotbed for research some 40 years after it first ...

Physics / Quantum Physics

created Dec 11, 2009 | popularity 4.8 / 5 (45) | comments 8

Metal oxides hold the key to cheap, green energy

Harnessing the energy of sunlight can be as simple as tuning the optical and electronic properties of metal oxides at the atomic level by making an artificial crystal or super-lattice 'sandwich' says a Binghamton ...

Nanotechnology / Nanomaterials

created Apr 19, 2012 | popularity 4.9 / 5 (10) | comments 0 | with audio podcast