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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-08-27 and was most recently seen on 2026-08-27.
In condensed matter physics, the two-fluid model is a macroscopic model to explain superfluidity. The idea was suggested by László Tisza in 1938 and reformulated by Lev Landau in 1941 to explain the behavior of superfluid helium-4. This model states that there will be two components in liquid helium below its lambda point. These components are a normal fluid and a ideal fluid component. Each liquid has a different density and together their sum makes the total density, which remains constant. The ratio of superfluid density to the total density increases as the temperature approaches absolute zero.
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