Speaker
Описание
Tracker Equation For Cosmological Tracking Solutions
Zaheer Abbas
Department of Physics
Government Engineering College Jehanabad
ABSTRCT
The energy content of the universe may be supplemented by quintessence as
a slowly- rolling scalar field. The understanding of tracker fields enables us to
avoid the initial condition i.e. at the early age of the universe, match for the
scalar and matter field which is very sensitive for the present observed ratio
of their energy density nearly same today, as first one has very slow
decreasing energy density than the last one. Quintessence [1] is considered
to be missing energy component required to supplement the baryonic and
matter density to achieve the critical density. [2, 3] This energy component
has negative pressure with dynamical character and distributed in-
homogeneously with slow time evolution. A form of quintessence called
tracker fields has been introduced which avoids the coincidence problem [4].
We have calculated tracker function other than [5] and looking for its
implication.
