Inflatorni kosmološki modeli sa tahionskim i radionskim poljima
Author
Milošević, Milan D.Mentor
Đorđević, GoranCommittee members
Nešić, LjubišaJovanović, Predrag
Metadata
Show full item recordAbstract
A popular class of the inflationary cosmological models is based
on an introduction of a scalar field with nonstandard tachyonic
Lagrangian of the Dirac-Born-Infeld (DBI) type. A potentially
fundamental role of the tachyon fields in the braneworld cosmology
was proposed by A. Sen. Research in this PhD thesis is
motivated by Randall-Sundrum (RSII) cosmological model. The
main objective of the research is to formulate and solve an analytical-
numerical inflationary model with DBI-tachyon field and
RSII model with an additional radion field, as well computation
of observational parameters. Obtained results are in a good
agreement with the real astrophysical data and provide a better
understanding of the role of strings and branes in modern cosmology.
The results indicated that role of radion in an initial
RSII setup is less important than expected.
Faculty:
Универзитет у Нишу, Природно-математички факултетDate:
15-06-2017Projects:
- Visible and Invisible Matter in Nearby Galaxies: Theory and Observations (RS-MESTD-Basic Research (BR or ON)-176021)