Microscopic construction of the two-fluid model for superfluid helium-4

• Published in: Condensed Matter Physics
• Date: 2009
• Main Authors: Shygorin, P., Svidzynskyj, A.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2009
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/120338
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Microscopic construction of the two-fluid model for superfluid helium-4 / P. Shygorin, A. Svidzynskyj // Condensed Matter Physics. — 2009. — Т. 12, № 4. — С. 657-663. — Бібліогр.: 5 назв. — англ.

Using a system of Heisenberg's equation of motion for both the normal and the anomalous correlation functions
 a two-fluid hydrodynamics for superfluid helium-4 was constructed. The method is based on a gradient
 expansion of the exact equations of motion for correlation functio...