Abstract The Nobel Prize winning confirmation in 1998 of the accelerated expansion of our
Universe put into sharp focus the need of a consistent theoretical model to explain the origin …

We review in detail a number of approaches that have been adopted to try and explain the
remarkable observation of our accelerating universe. In particular we discuss the arguments …

We present a detailed exposition on the prospects of the formation of Primordial Black Holes
(PBHs) during Slow Roll (SR) to Ultra Slow Roll (USR) sharp transitions in the framework of …

We consider Galileon inflation in the Effective Field Theory (EFT) framework and examine
the possibility for PBH formation during slow roll (SR) to ultra slow roll (USR) transitions. We …

The study of cosmic phase transitions are of central interest in modern cosmology. In the
standard model of cosmology the Universe begins in a very hot state, right after at the end of …

Recent cosmological observations suggest the existence of a positive cosmological constant
Λ with the magnitude Λ (Gℏ/c3)≈ 10− 123. This review discusses several aspects of the …

It is an accepted practice in cosmology to invoke a scalar field with a potential V (φ) when
the observed evolution of the universe cannot be reconciled with theoretical prejudices …

We present a detailed study of the generation of large primordial non-Gaussianities during
the slow-roll (SR) to ultra-slow roll (USR) transitions in the framework of Galileon inflation …

We present a detailed study of cosmological effects of homogeneous tachyon matter
coexisting with nonrelativistic matter and radiation, concentrating on the inverse square …

N-flation Page 1 Journal of Cosmology and Astroparticle Physics N-flation To cite this article: S
Dimopoulos et al JCAP08(2008)003 View the article online for updates and enhancements. You …