News tagged with zero temperature
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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'Quantum criticality': Ultracold experiments heat up quantum research
(PhysOrg.com) -- University of Chicago physicists have experimentally demonstrated for the first time that atoms chilled to temperatures near absolute zero may behave like seemingly unrelated natural systems ...
Mar 18, 2012 |
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Rice's 'quantum critical' theory gets experimental boost
New evidence this week supports a theory developed five years ago at Rice University to explain the electrical properties of several classes of materials -- including unconventional superconductors -- that ...
Jan 11, 2012 |
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Fusion researchers see frozen pellet tech as way to control ITER's plasma as well as fuel it
(PhysOrg.com) -- Heated to extreme temperatures of up to 150 million degrees Celsius, the plasma in ITER's giant experimental fusion reactor will be fed a fuel of frozen pellets of deuterium-tritium, fired ...
Nov 03, 2011 |
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Etch-a-sketch with superconductors
Reporting in Nature Materials this week, researchers from the London Centre for Nanotechnology and the Physics Department of Sapienza University of Rome have discovered a technique to 'draw' superconducting shapes ...
Aug 22, 2011 |
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Fleeting fluctuations in superconductivity disappear close to transition temperature
(PhysOrg.com) -- As part of an ongoing effort to uncover details of how high-temperature superconductors carry electrical current with no resistance, scientists at Johns Hopkins University and the U.S. Department ...
Feb 13, 2011 |
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Scientists using lasers to cool and control molecules
(PhysOrg.com) -- Ever since audiences heard Goldfinger utter the famous line, “No, Mr. Bond; I expect you to die,” as a laser beam inched its way toward James Bond and threatened to cut him in half, lasers ...
Sep 20, 2010 |
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Physicists propose quantum refrigerator
(PhysOrg.com) -- Scientists at the University of Bristol in the UK have proposed a refrigerator that consists of just a few quantum particles -- qubits.
Sep 01, 2010 |
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Seeing the quantum in chemistry: Scientists control chemical reactions of ultracold molecules
(PhysOrg.com) -- Physicists at JILA have for the first time observed chemical reactions near absolute zero, demonstrating that chemistry is possible at ultralow temperatures and that reaction rates can be ...
Feb 11, 2010 |
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Fire Meets Ice: Superhot And Supercold Remarkably Similar In The 'Fermion' World (w/ Video)
Trapping and cooling a microscopic clump of gas and then suddenly releasing it would normally result in the gas rapidly expanding outward in all directions, like a spherical bubble.
Aug 04, 2009 |
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New insights, and a new angle, on high-temperature superconductivity
(PhysOrg.com) -- A Princeton-led research team has revealed surprising information about how electron behavior influences the conduction of electricity in a class of high-temperature superconductors. An increased ...
Jun 29, 2009 |
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Of traffic jams, beach sands and the zero-temperature jamming transition
Researchers in condensed matter physics at the University of Pennsylvania and the University of Chicago have created an experimental and computer model to study how jamming, the physical process in which collections of particles ...
May 13, 2009 |
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A microscopic view on quantum fluctuations
(PhysOrg.com) -- Scientists at the Max Planck Institute of Quantum Optics achieve direct imaging of quantum fluctuations at absolute zero temperature.
Oct 14, 2011 |
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Supersolid helium unlikely
(PhysOrg.com) -- Does helium-4 become a "supersolid" near absolute zero? What previous researchers thought might be a supersolid transition is better explained by changes in the solid's resistance to shearing, ...
May 17, 2011 |
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Shaking down frozen helium: In a 'supersolid' state, it has liquid-like characteristics
In a four-decade, Holy Grail-like quest to fully understand what it means to be in a "supersolid" state, physicists have found that supersolid isn't always super solid. In other words, this exotic state of frozen helium appears ...
May 12, 2011 |
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