14 citations · 19 across the 8 of their papers we have counts for
8 papers · 1 filter
Analytical calculation of the observational parameters for tachyon inflation
Marko Stojanovic, Neven Bilić, Goran S. Djordjevic +2
We investigate the possibility of analytically calculating observational parameters in tachyon inflation cosmology, using the Hubble expansion rate as a function of the tachyon fie…
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…
On attractor behavior in braneworld constant-roll inflation
Goran S. Djordjevic, Neven Bilić, Dragoljub D. Dimitrijevic +2
We investigate in detail the attractor behavior of some inflationary models based on braneworld dynamics under the constant-roll condition. We describe the dynamics of the models,…
Constant-roll inflation with tachyon field in the holographic braneworld
Marko Stojanovic, Neven Bilic, Dragoljub D. Dimitrijevic +2
We study inflation driven by the tachyon field in the holographic braneworld by assuming the second slow-roll parameter is constant. The parameter can be either defined by…
Tachyon constant-roll inflation in Randall-Sundrum II cosmology
Marko Stojanovic, Neven Bilic, Dragoljub D. Dimitrijevic +2
We study inflation in a model with constant second slow-roll parameter . In this case, the Hubble expansion rate equation has analytical solutions describing four possible, nont…
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…