Massive String Cosmology in Bianchi Type III Space-Time with Electromagnetic Field

Details Massive String Cosmology in Bianchi Type III Space-Time with Electromagnetic Field Massive String Cosmology in Bianchi Type III Space-Time with Electromagnetic Field

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cotph..54..950a&link_type=abstract

Communications in Theoretical Physics, Volume 54, Issue 5, pp. 950-956 (2010).

Physics

Scientific paper

Exact solution of Einstein's field equations is obtained for massive string cosmological model of Bianchi III space-time using the technique given by Letelier (1983) in presence of perfect fluid and electromagnetic field. To get the deterministic solution of the field equations the expansion θ in the model is considered as proportional to the eigen value σ22 of the shear tensor σij and also the fluid obeys the barotropic equation of state. It is observed that in early stage of the evolution of the universe string dominates over the particle whereas the universe is dominated by massive string at the late time. It is also observed that the string phase of the universe disappears in our model because particle density becomes negative. Some physical and geometric properties of the model are also discussed.

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