4 papers
Primordial black hole formation in k-inflation models
Neven Bilić, Dragoljub D. Dimitrijević, Goran S. Djordjevic +2
The local primordial density fluctuations caused by quantum vacuum fluctuations during inflation grow into stars and galaxies in the late universe and, if they are large enough, al…
A scaling invariance of the perturbations in -inflation models
Neven Bilić, Dragoljub D. Dimitrijević, Goran S. Djordjevic +2
We study the background and perturbations in -essence inflation models and show that a general -essence exhibits a simple scaling property. In particular, we study two classe…
General Expressions for and for Several Minimally Coupled Single Scalar Field Models
Marko Stojanovic, Dragoljub D. Dimitrijevic, Milan Milosevic
We derive a generalized expressions for the scalar power spectrum and the observational parameters of inflation (the scalar spectral index and the tensor-to-scalar rati…
Tachyon inflation in the holographic braneworld
Neven Bilic, Dragoljub D. Dimitrijevic, Goran S. Djordjevic +2
A model of tachyon inflation is proposed in the framework of holographic cosmology. The model is based on a holographic braneworld scenario with a D3-brane located at the holograph…