Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck Data
Tachyon inflationary universe model on the brane in the context of warm inflation is studied. In slow-roll approximation and in longitudinal gauge, we find the primordial perturbation spectrums for this scenario. We also present the general expressions of the tensor-scalar ratio, scalar spectral ind...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2016/9682398 |
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| author | V. Kamali M. R. Setare |
| author_facet | V. Kamali M. R. Setare |
| author_sort | V. Kamali |
| collection | DOAJ |
| description | Tachyon inflationary universe model on the brane in the context of warm inflation is studied. In slow-roll approximation and in longitudinal gauge, we find the primordial perturbation spectrums for this scenario. We also present the general expressions of the tensor-scalar ratio, scalar spectral index, and its running. We develop our model by using exponential potential; the characteristics of this model are calculated in great detail. We also study our model in the context of intermediate (where scale factor expands as a=a0expAtf) and logamediate (where the scale factor expands as a=a0expAlntν) models of inflation. In these two sectors, dissipative parameter is considered as a constant parameter and a function of tachyon field. Our model is compatible with observational data. The parameters of the model are restricted by Planck data. |
| format | Article |
| id | doaj-art-984c2603a22545bcb9c0b3fdb65a27fd |
| institution | OA Journals |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-984c2603a22545bcb9c0b3fdb65a27fd2025-08-20T02:09:59ZengWileyAdvances in High Energy Physics1687-73571687-73652016-01-01201610.1155/2016/96823989682398Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck DataV. Kamali0M. R. Setare1Department of Physics, Faculty of Science, Bu-Ali Sina University, Hamedan 65178, IranDepartment of Science, University of Kurdistan, Campus of Bijar, Bijar 15175, IranTachyon inflationary universe model on the brane in the context of warm inflation is studied. In slow-roll approximation and in longitudinal gauge, we find the primordial perturbation spectrums for this scenario. We also present the general expressions of the tensor-scalar ratio, scalar spectral index, and its running. We develop our model by using exponential potential; the characteristics of this model are calculated in great detail. We also study our model in the context of intermediate (where scale factor expands as a=a0expAtf) and logamediate (where the scale factor expands as a=a0expAlntν) models of inflation. In these two sectors, dissipative parameter is considered as a constant parameter and a function of tachyon field. Our model is compatible with observational data. The parameters of the model are restricted by Planck data.http://dx.doi.org/10.1155/2016/9682398 |
| spellingShingle | V. Kamali M. R. Setare Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck Data Advances in High Energy Physics |
| title | Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck Data |
| title_full | Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck Data |
| title_fullStr | Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck Data |
| title_full_unstemmed | Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck Data |
| title_short | Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck Data |
| title_sort | tachyon warm intermediate and logamediate inflation in the brane world model in the light of planck data |
| url | http://dx.doi.org/10.1155/2016/9682398 |
| work_keys_str_mv | AT vkamali tachyonwarmintermediateandlogamediateinflationinthebraneworldmodelinthelightofplanckdata AT mrsetare tachyonwarmintermediateandlogamediateinflationinthebraneworldmodelinthelightofplanckdata |