News tagged with superfluid
Physicists control quantum tunneling with light for the first time
Scientists at the Cavendish Laboratory in Cambridge have used light to help push electrons through a classically impenetrable barrier. While quantum tunnelling is at the heart of the peculiar wave nature of particles, this ...
Apr 05, 2012 |
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Searching for a solid that flows like a liquid
(PhysOrg.com) -- A series of neutron scattering experiments at Oak Ridge National Laboratory and other research centers is exploring the key question about a long-sought quantum state of matter called supersolidity: ...
Feb 03, 2012 |
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Watching a gas turn superfluid
Every time you boil water in a kettle, you witness a phenomenon known as a phase transition — water transforms from a liquid to a gas, as you can see from the bubbling water and hissing steam. MIT physicists ...
Jan 18, 2012 |
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Seeing quantum mechanics with the naked eye
(PhysOrg.com) -- A Cambridge team have built a semiconductor chip that converts electrons into a quantum state that emits light but is large enough to see by eye. Because their quantum superfluid is simply ...
Jan 09, 2012 |
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Modeling the bizarre: Quantum superfluids
(PhysOrg.com) -- More than 100 years since superconductivity was discovered, a comprehensive description for the behavior of a broad class of fundamental physical systems that exhibit the bizarre properties ...
Jun 23, 2011 |
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Physicists hit on mathematical description of superfluid dynamics
(PhysOrg.com) -- It has been 100 years since the discovery of superconductivity, a state achieved when mercury was cooled, with the help of liquid helium, to nearly the coldest temperature achievable to form ...
Jun 09, 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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Chandra finds superfluid in neutron star's core
(PhysOrg.com) -- NASA's Chandra X-ray Observatory has discovered the first direct evidence for a superfluid, a bizarre, friction-free state of matter, at the core of a neutron star. Superfluids created in ...
Feb 23, 2011 |
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Physicists show that superfluid light is possible
(PhysOrg.com) -- Superfluidity – the phase of matter that enables a fluid to move up the sides of its container – has been known about since the 1930s. Since then, superfluidity has become a prime ...
Oct 27, 2010 |
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Delving into the world of the ultra-cold
(PhysOrg.com) -- In Swinburne University's 'cold molecules lab', where temperatures one millionth of a degree above absolute zero are routinely achieved, researchers are making significant advances in understanding the weird ...
Sep 02, 2010 |
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The world is running out of helium: Nobel prize winner
(PhysOrg.com) -- A renowned expert on helium says we are wasting our supplies of the inert gas helium and will run out within 25 to 30 years, which will have disastrous consequences for hospitals and industry.
Aug 24, 2010 |
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A crack in the case for supersolids
New experiments are casting doubt on previously reported observations of supersolid helium. In a paper appearing in the current issue of Physical Review Letters, John Reppy (Cornell University) presents research suggesting that p ...
Jun 21, 2010 |
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Frictionless supersolid a step closer
Superfluid mixtures of atoms can boil and freeze at ultra-low temperatures. This freezing can result in the formation of supersolids of atoms that can flow alongside each other without friction, but are still set in a fixed ...
Feb 14, 2010 |
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Frozen helium-4 may be an unusual 'superglass'
(PhysOrg.com) -- When helium is cooled to around 4 degrees above absolute zero, it turns liquid. Make it a couple of degrees cooler, and it becomes a "superfluid" that flows without resistance from its container, ...
May 01, 2009 |
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Flatland physics probes mysteries of superfluidity
(Physorg.com) -- If physicists lived in Flatland—the fictional two-dimensional world invented by Edwin Abbott in his 1884 novel—some of their quantum physics experiments would turn out differently (not just ...
Mar 25, 2009 |
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