منابع مشابه
Vector field as a quintessence partner
We derive generic equations for a vector field driving the evolution of flat homogeneous isotropic universe and give a comparison with a scalar filed dynamics in the cosmology. Two exact solutions are shown as examples, which can serve to describe an inflation and a slow falling down of dynamical " cosmological constant " like it is given by the scalar quintessence. An attractive feature of vec...
متن کامل20 95 v 2 1 8 M ar 2 00 4 Vector field as a quintessence partner
We derive generic equations for a vector field driving the evolution of flat homogeneous isotropic universe and give a comparison with a scalar filed dynamics in the cosmology. Two exact solutions are shown as examples, which can serve to describe an inflation and a slow falling down of dynamical " cosmological constant " like it is given by the scalar quintessence. An attractive feature of vec...
متن کامل- qc / 0 40 20 95 v 1 2 3 Fe b 20 04 Vector field as a quintessence partner
We derive generic equations for a vector field driving the evolution of flat homogeneous isotropic universe and give a comparison with a scalar filed dynamics in the cosmology. Two exact solutions are shown as examples, which can serve to describe an inflation and a slow falling down of dynamical " cosmological constant " like it is given by the scalar quintessence. An attractive feature of vec...
متن کاملar X iv : g r - qc / 0 40 20 95 v 4 7 M ay 2 00 4 Vector field as a quintessence partner
We derive generic equations for a vector field driving the evolution of flat homogeneous isotropic universe and give a comparison with a scalar filed dynamics in the cosmology. Two exact solutions are shown as examples, which can serve to describe an inflation and a slow falling down of dynamical " cosmological constant " like it is given by the scalar quintessence. An attractive feature of vec...
متن کاملQuintessence as a runaway dilaton
We consider a late-time cosmological model based on a recent proposal that the infinite-bare-coupling limit of superstring/M-theory exists and has good phenomenological properties, including a vanishing cosmological constant, and a massless, decoupled dilaton. As it runs away to +∞, the dilaton can play the role of the quintessence field recently advocated to drive the late-time accelerated exp...
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ژورنال
عنوان ژورنال: Classical and Quantum Gravity
سال: 2004
ISSN: 0264-9381,1361-6382
DOI: 10.1088/0264-9381/21/13/014