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SFHESuperfluid Helium
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Vanderlei Bagnato of the University of Sao Paulo in Brazil, a coauthor on the paper, thinks the same turbulent wiggle that appears to dissipate energy in the superfluid helium may be doing so in the Bose-Einstein condensate as well.
On other hand, as we have noted, there are two types of excitation in superfluid helium at lambda transition point [5].
For many years after the discovery of superconductivity in 191 1, only liquid or superfluid helium could be used as a coolant for practical devices.
A pulse-echo technique[16,17,18] was used to measure the conversion loss of the device at the superfluid helium temperature of 1.5 [degrees] K.
Now, scientists at the Institute of Science and Technology Austria (IST Austria) have shown that there is a much simpler way to observe such magnetic monopoles: They have demonstrated that superfluid helium droplets act as magnetic monopoles from the perspective of molecules that are immersed inside them.
22) states, "Superfluidity arises when the atoms in superfluid helium join up in a quantum state called a Bose-Einstein condensate." Further reading leads me to believe that the quoted statement may not be accurate.
With its huge light-collection capability and set of sophisticated detectors cooled to the vicinity of absolute zero by over 2000 liters of superfluid helium, Herschel will look at the faintest and farthest infrared sources and peer into the as-yet uncharted far infrared and submillimetric parts of the spectrum.
A new interpretation of oscillating flow experiments in superfluid Helium II, J.
Two projects, one centered at the ILL [4] and this project, a collaboration based at Los Alamos National Laboratory (LANL), involve the storage of ultracold neutrons (UCN) in superfluid Helium and cryogenic techniques for controlling the magnetic fields.
The unique properties of superfluid helium, which have been the subject of several Nobel prizes, allow it to coat and climb the sides of a container, and to seep through molecule-wide holes that would have held in the same liquid at higher temperatures.