Conveners
Inflation-II
- Supratik Pal
Mr
Pankaj Saha
(Department of Physics, Indian Institute of Technology, Guwahati)
29/01/2015, 15:45
Contributory Talks
In this paper we explored in detail a phenomenological model of modified single field natural inflation in the light of recent cosmological experiments BICEP2. Our main goal is to construct an inflationary model which not only predicts the important cosmological quantities such as ($ n_s , r $) compatible with the experimental observation but also is consistent with the low energy effective...
Dr
Akhilesh Nautiyal
(Indian Institute of Science Education and Research Bhopal)
29/01/2015, 16:00
Contributory Talks
BICEP2 has detected gravitational waves with large tensor to scalar ratio r=0.2, that is in tension with PLANCK's upper bound r<0.11 from temperature anisotropy. The tension can be resolved if the spectrum of gravitational waves is blue tilted.
The spectrum of gravitational waves generated in standard inflationary scenarios is almost scale invariant. But, if we take into account the Hawking...
Mr
Md. Wali Hossain
(Centre for Theoretical Physics, Jamia Millia Islamia, New Delhi-110025)
29/01/2015, 16:15
Contributory Talks
A unified description of inflation and late-time cosmic acceleration (quintessential inflation) will be discussed in variable gravity frame work. Nonminimal coupling between massive neutrinos and the scalar field is considered in the Einstein frame.
Tensor-to-scalar ratio is large ($r>0.1$) such that the scale of inflation is around the GUT scale.
Relic gravitational wave spectrum has a blue...
Mr
Suvodip Mukherjee
(IUCAA)
29/01/2015, 16:30
Contributory Talks
The Standard Cosmological Model is based upon the Cosmological Principle that the Universe on large scales is isotropic and homogeneous. But the recent measurements from Planck temperature field have made a significant detection of dipolar modulated temperature field of Cosmic Microwave Background (CMB) which implies a departure from the isotropic cosmological model. This observed dipolar...
