Equivalence between the descriptions of cosmological models using a spinor field and a perfect fluid

V.G. Krechet1, M.L. Fil'chenkov2 and G.N. Shikin3

Abstract

A possibility of simulating a perfect fluid using spinor fields with different nonlinearities is investigated. Exact cosmological solutions to Einstein's equations with spinor fields are compared to the corresponding ones with perfect fluids.

References

  1. V. G. Krechet, M. L. Fil'chenkov, and G. N. Shikin, Grav. Cosmol. 13, 267 (2007).
  2. V. G. Krechet, M. L. Fil'chenkov, and G.N. Shikin, Izvestiya VUZov, Fizika 46, No. 4, 15 (2004).
  3. I. L. Buchbinder, J. K. Khoury, and B. A. Ovrut, Phys. Rev. D 76, 123503 (2007).
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