2 ms·
Measuring Reynolds similitude in superfluids could help prove quantum viscosity
- westurner 3y agoIs there a quantum analogue of this guy that could help measure quantum curl and divergence and viscosity?: "Perfect Resonant Absorption of Guided Water Waves by Autler-Townes Splitting" (2023) https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.131.204002 https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.13... https://news.ycombinator.com/item?id=38369731 https://news.ycombinator.com/item?id=38369731 https://westurner.github.io/hnlog/#story-38369731 https://westurner.github.io/hnlog/#story-38369731 "Vanishing Act for Water Waves" (2023) https://physics.aps.org/articles/v16/196 https://physics.aps.org/articles/v16/196 : > Cavities at the sides of a water channel can cause waves to be completely absorbed
- westurner 3y ago> "Superfluids have long been considered an obvious exception to the Reynolds similitude," Dr. Takeuchi said, explaining that the Reynolds law of similitude states that if two flows have the same Reynolds number, then they are physically identical. "The concept of quantum viscosity overturns the common sense of superfluid theory, which has a long history of more than half a century. Establishing similitude in superfluids is an essential step to unify classical and quantum hydrodynamics." "Quantum viscosity and the Reynolds similitude of a pure superfluid" (2024) https://journals.aps.org/prb/abstract/10.1103/PhysRevB.109.L020502 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.109.L...
- westurner 3y agoRe: superfluid quantum gravity w/ Bernoulli's, viscosity: https://news.ycombinator.com/item?id=39139053 https://news.ycombinator.com/item?id=39139053