DARK ENERGY AND DARK MATTER OF THE UNIVERSE FROM ONE-LOOP RENORMALIZATION OF RICCION S.K.Srivastava

نویسنده

  • S K Srivastava
چکیده

Here, creation of the universe is obtained out of gravity only. The dynamical universe begins with two basic ingredients (i)vacuum energy, also called dark energy (as vacuum energy is not observed) and (ii) background radiation. These two are obtained through one-loop renormalization of riccion. Solutions of renormalization group equations yield initial value of vacuum energy with density ρΛew = 1.16×107GeV as well as show a phase transition at the electroweak scaleMew. As a result of phase transition, energy is released (in the form of background radiation) heating the universe upto temperature Tew = 33.5GeV = 3.89 × 10K initially. In the proposed cosmology, it is found that not only current universe expands with acceleration, but it undergoes accelerated expansion from the beginning itself. It is demonstrated that dark energy decays to dark matter as well as ratio of dark matter density and dark energy density remains less than unity upto a long 1

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

2 00 4 Dark energy and dark matter of the universe from One - loop renormalization of riccion

Here, creation of the universe is obtained out of " no matter or energy " , but only from gravity of 10-dimensional " bulk " space-time. In the beginning, the higher-derivative gravitational action is taken in (4 + D)-dimensional space-time with topology M 4 ⊗ S D , where M 4 is the usual 4-dimensional space-time and the D-dimensional sphere S D being a compact manifold. On compactification of ...

متن کامل

ar X iv : h ep - t h / 04 04 17 0 v 3 1 7 Fe b 20 05 Dark Energy and Dark Matter of the universe from One - loop renormalization of Riccion

Here, creation of the universe is obtained out of gravity only. The dynam-ical universe begins with two basic ingredients (i)vacuum energy, also called dark energy (as vacuum energy is not observed) and (ii) background radiation. These two are obtained through one-loop renormalization of riccion. Solutions of renormalization group equations yield initial value of vacuum energy with density ρ Λe...

متن کامل

ar X iv : h ep - t h / 04 04 17 0 v 2 1 2 A ug 2 00 4 Dark Energy and Dark Matter of the universe from One - loop renormalization of Riccion

Here, creation of the universe is obtained out of gravity only. The dy-namical universe begins with two basic ingredients (i)vacuum energy, also called dark energy (as vacuum energy is not observed) and (ii) background radiation. These two are obtained through one-loop renormalization of ric-cion. In the proposed cosmology, it is found that not only current universe expands with acceleration, b...

متن کامل

RICCION AS A COSMIC DARK MATTER CANDIDATE AND LATE COSMIC ACCELERATION S.K.Srivastava

In the past few years, a posibility is investigated, where curvature itself behaves as a source of dark energy. So, it is natural to think whether curvature can produce dark matter too. It is found that, at classical level, higher-derivative gravity yields curvature inspired particles namely riccions[11]. Here, it is probed whether riccion can be a possible source of dark matter. Further, it is...

متن کامل

RICCION AS A COSMIC DARK MATTER CANDIDATE AND LATE COSMIC ACCELERATION S.K.Srivastava

In the past few years, a posibility is investigated, where curvature itself behaves as a source of dark energy. So, it is natural to think whether curvature can produce dark matter too. It is found that, at classical level, higher-derivative gravity yields curvature inspired particles namely riccions[31]. Here, it is probed whether riccion can be a possible source of dark matter. Further, it is...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005