News tagged with quantum hall effect


Researchers create 'synthetic magnetic fields' for neutral atoms

Researchers create 'synthetic magnetic fields' for neutral atoms

Physics / Quantum Physics

created Dec 02, 2009 | popularity 4.9 / 5 (15) | comments 2

(PhysOrg.com) -- Achieving an important new capability in ultracold atomic gases, researchers at the Joint Quantum Institute, a collaboration of the National Institute of Standards and Technology and the University ...





Search results for quantum hall effect


Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

Physics / Quantum Physics

created Dec 16, 2009 | popularity 4.6 / 5 (53) | comments 15

(PhysOrg.com) -- Spacetime, which consists of three dimensions of space and one time dimension, is such a large, abstract concept that scientists have a very difficult time understanding and defining it. Moreover, ...


New structure could produce efficient semiconductor laser sources

New structure could produce efficient semiconductor laser sources

Physics / General Physics

created Dec 14, 2009 | popularity 4.7 / 5 (3) | comments 1

(PhysOrg.com) -- University of Wisconsin-Madison researchers have achieved a nanoscale laser structure they anticipate will produce semiconductor lasers in the next two years that are more than twice as efficient ...


Rice physicists find reappearing quantum trios

Rice physicists find reappearing quantum trios

Physics / Quantum Physics

created Dec 11, 2009 | popularity 4.8 / 5 (43) | comments 8

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 ...


Argonne scientists to control attractive force for nanoelectromechanical systems

Nanotechnology / Nanophysics

created Dec 10, 2009 | popularity 3 / 5 (2) | comments 1

Scientists at the U.S. Department of Energy's Argonne National Laboratory are developing a way to control the Casimir force, a quantum mechanical force, which attracts objects when they are only hundred nanometers apart.


Oceans' Uptake of Manmade Carbon May Be Slowing

Oceans' Uptake of Manmade Carbon May Be Slowing

Space & Earth / Earth Sciences

created Dec 09, 2009 | popularity 3.5 / 5 (20) | comments 10

(PhysOrg.com) -- The oceans play a key role in regulating climate, absorbing more than a quarter of the carbon dioxide that humans put into the air. Now, the first year-by-year accounting of this mechanism ...


Metamaterials could reduce friction in nanomachines

Nanotechnology / Nanomaterials

created Dec 07, 2009 | popularity 5 / 5 (4) | comments 2

(PhysOrg.com) -- Nanoscale machines expected to have wide application in industry, energy, medicine and other fields may someday operate far more efficiently thanks to important theoretical discoveries concerning the manipulation ...


Munich lab demonstrates diesel truck engine with barely measurable emissions

German researchers demonstrate diesel truck engine with barely measurable emissions

Technology / Engineering

created Dec 07, 2009 | popularity 3.8 / 5 (6) | comments 1

Just three months after the Euro 5 Norm for exhaust emissions went into force for all new car models, researchers at the Technische Universitaet Muenchen (TUM, Germany) have demonstrated an engine that is ...


Researchers Identify Key Molecules in Photosynthesis

Researchers Identify Key Molecules in Photosynthesis

Chemistry / Biochemistry

created Dec 02, 2009 | popularity 5 / 5 (8) | comments 0

(PhysOrg.com) -- Chemistry professor Harry Frank led an international group of researchers that identified the molecules in algae which direct the organisms to convert sunlight into oxygen. The findings may ...


South Africa to treat all HIV-positive babies (AP)

South Africa to treat all HIV-positive babies

Medicine & Health / HIV & AIDS

created Dec 01, 2009 | popularity not rated yet | comments 0

(AP) -- South Africa announced ambitious new plans Tuesday for earlier and expanded treatment for HIV-positive babies and pregnant women, a change that could save hundreds of thousands of lives in the nation ...


First Pump-Probe Experiment at LCLS Completed

First Pump-Probe Experiment at Linac Coherent Light Source Completed

Physics / General Physics

created Nov 30, 2009 | popularity 4.7 / 5 (12) | comments 0

(PhysOrg.com) -- The first experiment using the Linac Coherent Light Source to illuminate molecules via a "pump-probe" technique has been completed by an international team of more than 30 scientists from ...



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