So I was checking out some cool videos on youtube of helium in superfluid state and I have a question about it.(adsbygoogle = window.adsbygoogle || []).push({});

How exactly does this superfluid have both zero and non-zero viscosity at the same time?

The evidence seems pretty clear that it exhibits zero viscosity since it forms a Rollin film and it can appear non-zero because if you spin a drum inside it the fluid begins to turn. It is also known that it is not a mix of two types of fluid but rather one fluid that exhibits both properties at the same time (100% of the fluid will drain through a Rollin film not just a zero viscosity portion of it). So how is this possible? Does it have anything to do with QM? Is it like a macroscopic superposition of both zero and non-zero viscosity fluid?

**Physics Forums - The Fusion of Science and Community**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# QM and helium superfluid

Loading...

Similar Threads for helium superfluid | Date |
---|---|

A Where to start with path integral Monte Carlo? | Jun 8, 2016 |

Variational method For Helium Atom | Mar 5, 2015 |

Triplet and Singlet Helium States | Jan 13, 2015 |

Would there be any use in a Rydberg equation for Helium | Jul 5, 2014 |

Superfluid helium and spin | Oct 20, 2004 |

**Physics Forums - The Fusion of Science and Community**