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| Main Author: | |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.08826 |
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| _version_ | 1866912575242895360 |
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| author | Attard, Phil |
| author_facet | Attard, Phil |
| contents | The two-fluid theory for superfluid hydrodynamics is derived from the fountain pressure result that condensed bosons move at constant entropy and are driven by the chemical potential gradient. Explicit results for $^4$He show that the superfluid has vorticity, which is consistent with measured data but inconsistent with Landau's principle that superfluid flow is irrotational. The macroscopic wavefunction is criticised. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_08826 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | The Two-Fluid Theory for Superfluid Hydrodynamics and Rotational Motion Attard, Phil Statistical Mechanics The two-fluid theory for superfluid hydrodynamics is derived from the fountain pressure result that condensed bosons move at constant entropy and are driven by the chemical potential gradient. Explicit results for $^4$He show that the superfluid has vorticity, which is consistent with measured data but inconsistent with Landau's principle that superfluid flow is irrotational. The macroscopic wavefunction is criticised. |
| title | The Two-Fluid Theory for Superfluid Hydrodynamics and Rotational Motion |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2505.08826 |