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Article overview
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Perfect fluids: Field-theoretical description and gauge symmetry issue | | Nikolai V. Mitskievich
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21 Jun 2010 | | Abstract: | We show that combinations of (in general, non-linear) 2- and 3-form fields
analogous to the Maxwell (1-form) field, completely describe perfect fluids,
including the rotating ones. In the non-rotating case, the 2-form field in
sufficient, and a free 3-form field proves to be equivalent to appearance of
the cosmological term in Einstein’s equations (the square-root non-linearity
corresponding to $Lambda=0$). The gauge degrees of freedom break down when a
rotation is included, but even when they exist, there obviously fails to be
realized an equivalence of the 2-form field and the massless scalar one
recently claimed by Weinberg. | | Source: | arXiv, 1006.4130 | | Services: | Forum | Review | PDF | Favorites | |
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