Unifying inflation with late-time acceleration by a BIonic system
We propose a cosmological model that unifies inflation, deceleration and acceleration phases of expansion history by a BIonic system. At the beginning, there are k black fundamental strings that transited to the BIon configuration at a given corresponding point. Here, two coupled universes, brane an...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2015-07-01
|
| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315003792 |
| _version_ | 1818011333378965504 |
|---|---|
| author | Alireza Sepehri Farook Rahaman Mohammad Reza Setare Anirudh Pradhan Salvatore Capozziello Iftikar Hossain Sardar |
| author_facet | Alireza Sepehri Farook Rahaman Mohammad Reza Setare Anirudh Pradhan Salvatore Capozziello Iftikar Hossain Sardar |
| author_sort | Alireza Sepehri |
| collection | DOAJ |
| description | We propose a cosmological model that unifies inflation, deceleration and acceleration phases of expansion history by a BIonic system. At the beginning, there are k black fundamental strings that transited to the BIon configuration at a given corresponding point. Here, two coupled universes, brane and antibrane, are created interacting each other through a wormhole and inflate. With decreasing temperature, the energy of this wormhole flows into the universe branes and leads to inflation. After a short time, the wormhole evaporates, the inflation ends and a deceleration epoch starts. By approaching the brane and antibrane universes together, a tachyon is born, grows and causes the creation of a new wormhole. At this time, the brane and antibrane universes result connected again and the late-time acceleration era of the universe begins. We compare our model with previous unified phantom models and observational data obtaining some cosmological parameters like temperature in terms of time. We also find that deceleration parameter is negative during inflation and late-time acceleration epochs, while it is positive during the deceleration era. This means that the model is consistent, in principle, with cosmological observations. |
| first_indexed | 2024-04-14T06:06:23Z |
| format | Article |
| id | doaj.art-432d01f5c91047e18337c92406665693 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-04-14T06:06:23Z |
| publishDate | 2015-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-432d01f5c91047e18337c924066656932022-12-22T02:08:30ZengElsevierPhysics Letters B0370-26931873-24452015-07-01747C1810.1016/j.physletb.2015.05.042Unifying inflation with late-time acceleration by a BIonic systemAlireza Sepehri0Farook Rahaman1Mohammad Reza Setare2Anirudh Pradhan3Salvatore Capozziello4Iftikar Hossain Sardar5Faculty of Physics, Shahid Bahonar University, P.O. Box 76175, Kerman, IranDepartment of Mathematics, Jadavpur University, Kolkata 700032, West Bengal, IndiaDepartment of Science, Campus of Bijar, University of Kurdistan, Bijar, IranDepartment of Mathematics, Institute of Applied Sciences & Humanities, GLA University, Mathura-281 406, U.P., IndiaDipartimento di Fisica, Universitá di Napoli “Federico II”, I-80126 Napoli, ItalyDepartment of Mathematics, Jadavpur University, Kolkata 700032, West Bengal, IndiaWe propose a cosmological model that unifies inflation, deceleration and acceleration phases of expansion history by a BIonic system. At the beginning, there are k black fundamental strings that transited to the BIon configuration at a given corresponding point. Here, two coupled universes, brane and antibrane, are created interacting each other through a wormhole and inflate. With decreasing temperature, the energy of this wormhole flows into the universe branes and leads to inflation. After a short time, the wormhole evaporates, the inflation ends and a deceleration epoch starts. By approaching the brane and antibrane universes together, a tachyon is born, grows and causes the creation of a new wormhole. At this time, the brane and antibrane universes result connected again and the late-time acceleration era of the universe begins. We compare our model with previous unified phantom models and observational data obtaining some cosmological parameters like temperature in terms of time. We also find that deceleration parameter is negative during inflation and late-time acceleration epochs, while it is positive during the deceleration era. This means that the model is consistent, in principle, with cosmological observations.http://www.sciencedirect.com/science/article/pii/S0370269315003792Brane cosmologyInflationDark energyBIonic system |
| spellingShingle | Alireza Sepehri Farook Rahaman Mohammad Reza Setare Anirudh Pradhan Salvatore Capozziello Iftikar Hossain Sardar Unifying inflation with late-time acceleration by a BIonic system Physics Letters B Brane cosmology Inflation Dark energy BIonic system |
| title | Unifying inflation with late-time acceleration by a BIonic system |
| title_full | Unifying inflation with late-time acceleration by a BIonic system |
| title_fullStr | Unifying inflation with late-time acceleration by a BIonic system |
| title_full_unstemmed | Unifying inflation with late-time acceleration by a BIonic system |
| title_short | Unifying inflation with late-time acceleration by a BIonic system |
| title_sort | unifying inflation with late time acceleration by a bionic system |
| topic | Brane cosmology Inflation Dark energy BIonic system |
| url | http://www.sciencedirect.com/science/article/pii/S0370269315003792 |
| work_keys_str_mv | AT alirezasepehri unifyinginflationwithlatetimeaccelerationbyabionicsystem AT farookrahaman unifyinginflationwithlatetimeaccelerationbyabionicsystem AT mohammadrezasetare unifyinginflationwithlatetimeaccelerationbyabionicsystem AT anirudhpradhan unifyinginflationwithlatetimeaccelerationbyabionicsystem AT salvatorecapozziello unifyinginflationwithlatetimeaccelerationbyabionicsystem AT iftikarhossainsardar unifyinginflationwithlatetimeaccelerationbyabionicsystem |