The form of the stress tensor for superfluid4He
| ISSN: |
1573-7357
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Physics
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| Notes: |
Abstract From an approach based on reduced density matrices it follows that the stress tensor for a superfluid contains a quite new off-diagonal term occurring also in the entropy equation. Examination of this problem on the basis of the theory proposed by Bogoliubov suggests that the new term should be added to the static pressure to give the total pressure. In addition, it is demonstrated that the second derivative of free energy with respect to volume and the square of the superfluid velocity do not commute.
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| Type of Medium: |
Electronic Resource
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| URL: |