String cloud and domain walls with quark matter for plane symmetric cosmologicalmodel in bimetric theory

محورهای موضوعی : Journal of Theoretical and Applied Physics

Pradyumn Kumar Sahoo ¹ , Bivudutta Mishra ²

1 - Department of Mathematics, Birla Institute of Technology and Science-Pilani
2 - Department of Mathematics, Birla Institute of Technology and Science-Pilani

تاریخ پذیرش : 1392/09/10 تاریخ انتشار : 1392/09/10

کلید واژه: Strange quark matter, Domain walls, Cosmic strings, Bimetric theory,

چکیده مقاله :

AbstractWe have studied the plane symmetric cosmological solutions for quark mattercoupled with the string cloud and domain walls in the context ofRosen’s (General Relativity and Gravitation 4:435, 1973) bimetrictheory. It is observed that, in this theory, string cloud and domain wallsdo not exist. As we know that, at the early stage of evolution of theuniverse, domain walls as well as cosmic strings do appear which lead to theformation of galaxies. Thus, it may be said that the bimetric relativitydoes not help to describe the early era of the universe.Pacs04.50+h