News tagged with cold atoms
Black-hole like effect in nanotube and the possibility of new matter states
(PhysOrg.com) -- “For the first time, fields of study relating both to cold atoms and to the nanoscale have intersected,” Lene Vestergaard Hau tells PhysOrg.com. “Even though both have been active areas of res ...
Apr 16, 2010 |
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Is random lasing possible with a cold atom cloud?
(PhysOrg.com) -- Random lasing, Robin Kaiser tells PhysOrg.com, is like standard lasing, with a little bit of a twist: “You don’t know the direction the photons will go, as you do with a more standard laser. This is becaus ...
May 18, 2009 |
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Bouncing atoms may be the key to the future of gravimetry
(PhysOrg.com) -- When studying cold atoms, scientists often use magnetic or optical traps to keep the atoms in place. However, in some cases experimentalists want to study free atoms, avoiding the effects of a trap. "One ...
Apr 27, 2009 |
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New Research Promises Better Atomic Clocks
(PhysOrg.com) -- The most accurate timekeepers in the world are atomic clocks, which tell time based on the absorption of a very specific and unchanging microwave frequency, which induces electrons in an atom to “jump” from ...
Apr 22, 2009 |
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Physicists show standard 'quasiparticle' theory breaks down at 'quantum critical point'
A new study this week finds that "quantum critical points" in exotic electronic materials can act much like polarizing "hot button issues" in an election. Reporting in Nature, researchers from Rice Univer ...
Apr 25, 2012 |
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Simulating strongly correlated fermions opens the door to practical superconductor applications
Combining known factors in a new way, theoretical physicists Boris Svistunov and Nikolai Prokof'ev at the University of Massachusetts Amherst, with three alumni of their group, have solved an intractable 50-year-old ...
Mar 18, 2012 |
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Electron's negativity cut in half by supercomputer
(PhysOrg.com) -- While physicists at the Large Hadron Collider smash together thousands of protons and other particles to see what matter is made of, they're never going to hurl electrons at each other. No ...
Jan 12, 2012 |
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Physicists localize 3-D matter waves for first time (w/ video)
University of Illinois physicists have experimentally demonstrated for the first time how three-dimensional conduction is affected by the defects that plague materials. Understanding these effects is important ...
Oct 07, 2011 |
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Understanding tiny reactions: Cold atoms and nanotubes come together in atomic 'black hole'
(PhysOrg.com) -- Carbon nanotubes, long touted for applications in materials and electronics, may also be the stuff of atomic-scale black holes.
Apr 06, 2010 |
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A step closer to an ultra precise atomic clock
A clock that is so precise that it loses only a second every 300 million years - this is the result of new research in ultra cold atoms. The international collaboration is comprised of researchers from the ...
Apr 16, 2009 |
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Making a Point: Picoscale Stability in a Room-Temperature AFM
(PhysOrg.com) -- Forget dancing angels, a research team from the National Institute of Standards and Technology (NIST) and the University of Colorado (CU) has shown how to detect and monitor the tiny amount ...
Mar 25, 2009 |
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Through simple system studies, researchers are unearthing a new quantum state of matter
Researchers at the University of Pittsburgh have made advances in better understanding correlated quantum matter that could change technology as we know it, according to a study published in the Nov. 20 edition of Nature.
Nov 21, 2011 |
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Graphene may open the gate to future terahertz technologies
Nestled between radio waves and infrared light is the terahertz (THz) portion of the electromagnetic spectrum. By adding a nanoscale bit of graphene, researchers have found a better way to tune radiation for a THz transmitter.
Sep 12, 2011 |
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Scientists unveil structure of adenovirus, the largest high-resolution complex ever found
After more than a decade of research, Scripps Research Institute scientists have pieced together the structure of a human adenovirus—the largest complex ever determined at atomic resolution. The new findings ...
Aug 26, 2010 |
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Pushing the cold frontier in an orderly fashion
Physicists are continually reaching new lows as they reduce the temperatures of samples in their laboratories. But even nano-kelvins are not low enough to overcome the entropy (a measure of the disorder in ...
Sep 28, 2009 |
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