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Superfluid helium-4 is the best studies example of superfluidity. Helium-4 transitions from a liquid into a superfluid just a few degrees below its boiling point of -452 °F (-269 °C or 4 K). Superfluid helium-4 looks like a normal clear liquid. However, because it has no viscosity, once it starts flowing, it continues … See more
Superfluidity results in some strange phenomena that are not observed in ordinary liquids and gases. 1. Some superfluids, such as helium-3, creep up the walls of the … See more
Credit for the discovery of superfluidity goes to Pyotr Kapitsa, John F. Allen, and Don Misener. Kapitsa and, independently, Allen and Misener observed superfluidity in the isotope helium-4 in 1937. A helium-4 atom has integer spin and is a boson particle. It displays … See more
- 1. Annett, James F. (2005). Superconductivity, superfluids, and condensates. Oxford: Oxford Univ. Pres…
- 2. Khalatnikov, Isaac M. (2018). An introduction to the theory of superfluidity. CRC Press. ISBN 97… See more
At present, there aren’t many practical applications of superfluids. However, superfluid helium-4 is a coolant for high-field magnets. Both helium-3 and helium-4 find use in exotic particle detectors. Indirectly, researching superfluidity aids in understanding how … See more
Superfluidity was discovered in helium-4 by Pyotr Kapitsa and independently by John F. Allen and Don Misener in 1937. Onnes possibly observed the superfluid phase transition on August 2 1911, the same day that he observed superconductivity in mercury. It has since been described through phenomenology and microscopic theories.
In liquid helium-4, the superfluidity occurs at far higher temperatures than it does in helium-3. Ea…Wikipedia · Text under CC-BY-SA license- Estimated Reading Time: 8 mins
How superfluids work in-depth | Description, Example & Application
WEBMay 17, 2023 · Learn how superfluids work, from the role of quantum mechanics to their potential applications in fields like fluid dynamics and energy production.
WEBJul 20, 1998 · Superfluidity, the frictionless flow and other exotic behaviour observed in liquid helium at temperatures near absolute zero (−273.15 °C, or −459.67 °F), and (less …
WEBAug 10, 2015 · MIT physicists have created a superfluid gas, the so-called Bose-Einstein condensate, for the first time in an extremely high magnetic field. The magnetic field is a synthetic magnetic field, generated using …
WEBFeb 14, 2024 · When chilled to below about 2 K, large numbers of the atoms can occupy the lowest energy (ground) state. When this happens, the atoms form a superfluid. …
WEBJan 15, 2018 · Eighty years of superfluidity. In 1938, two studies demonstrated that liquid helium-4 flows without friction or viscosity at temperatures close to absolute zero. The finding led to major advances...
WEBFeb 25, 2016 · This time round, John Saunders of Royal Holloway University of London explains the equally weird phenomenon of superfluidity – fluids that flow without friction. Saunders explains how the transition to …
WEBSuperfluidity is one of the most fascinating phenomena which can occur in many-body quantum systems at low temperature [149,150]. It was discovered first in the …
WEBThis single example shows how physicists think of single atoms: they are interested in controlling the quantum states and properties of single atoms, for example, by …
Superfluid - an overview | ScienceDirect Topics
WEBDue to viscosity, the flow energy is gradually dissipated into heat. Contrary to this common situation, there is a special class of fluids, which can flow without viscosity. These are …
WEBAt a distance, an individual molecule appears electrically neutral. However, an uneven distribution of electrons within a molecule, especially for molecules composed of different …
Nobel 2003: superconductivity and superfluidity - Nature
WEBOct 2, 2023 · 20 years ago, the Nobel Prize in Physics was jointly awarded to Vitaly Ginzburg, Alexei Abrikosov and Anthony Leggett for contributions to the theory of …
superfluidity summary | Britannica
WEBsuperfluidity, Unusual property of liquid helium cooled below −455.75 °F (−270.97 °C). At such low temperatures, helium exhibits an enormous rise in heat conductivity and rapid …
The Physics of Superfluidity - Medium
WEBDec 9, 2020 · Examples of superfluids include helium-3 (or ³He) and helium-4 (or ⁴He). For temperatures below 2.17 K, helium-4 becomes a superfluid. Helium-3 becomes a …
Fluid Definition and Examples - Science Notes and Projects
WEBAug 7, 2021 · A superfluid is a special type of fluid that has zero viscosity so that no kinetic energy is lost when it flows. An interesting consequence is that superfluids climb or …
What is a Superfluid? (with picture) - AllTheScience
WEBMay 21, 2024 · A superfluid is a phase of matter capable of flowing endlessly without energy loss. This property of certain isotopes was discovered by Pyotr Leonidovich …
A new look at superfluidity | MIT Energy Initiative
WEBAug 11, 2015 · MIT physicists have created a superfluid gas, the so-called Bose-Einstein condensate, for the first time in an extremely high magnetic field. The magnetic field is a …
Superfluid helium-4 - Wikipedia
WEBSuperfluid helium-4 ( helium II or He-II) is the superfluid form of helium-4, an isotope of the element helium. A superfluid is a state of matter in which matter behaves like a fluid with …
Liquid hydrogen turns superfluid – Physics World
WEBNov 1, 2000 · Superfluids are relatively rare and inaccessible, with only two known examples in liquids: helium-3 and helium-4. Now Peter Toennies and co-workers at the …
Superfluidity - Explanation, Properties and Superconductivity …
WEB4 days ago · Superfluid refers to the state of matter in which the matter possesses the properties of liquid with zero viscosity. There exists some connection between …
There's no speed limit in a superfluid universe. Now we know why.
WEBSep 26, 2020 · A foreign object travelling through the medium could exceed a critical speed limit without breaking the fragile superfluid itself. As this contradicts our understanding of …
WEB19 hours ago · A prominent example is two parallel 1D Bose gases, which simulate 1D quantum field theories through the phase difference probed by interference. Here we …
WEBAt a distance, an individual molecule appears electrically neutral. However, an uneven distribution of electrons within a molecule, especially for molecules composed of different …
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