| 快子暴涨的Hamilton-Jacobi形式及宇宙学扰动 |
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| 引用本文： | 刘道军.快子暴涨的Hamilton-Jacobi形式及宇宙学扰动[J].上海师范大学学报(自然科学版),2014,43(4):349-358. |
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| 作者姓名： | 刘道军 |
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| 作者单位： | 上海师范大学天体物理中心; |
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| 基金项目： | 上海市自然科学基金项目(12ZR142170);上海师范大学创新团队项目(DXL124) |
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| 摘 要： | 讨论带有Born-Infeld作用量的快子场所驱动的暴涨模型.首先给出了快子暴涨方程的Hamilton-Jacobi形式并且考虑如何去解Hamilton-Jacobi方程;然后讨论快子场的宇宙学扰动给出扰动场的模方程;最后,讨论了一个真实的由弦理论得来的滚动快子模型.
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| 关 键 词： | 快子暴涨 Hamilton-Jacobi方程 宇宙学扰动 |
| 收稿时间： | 2014/6/20 0:00:00 |
Hamilton-Jacobi formalism of tachyon inflation and cosmological perturbations |
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| LIU Daojun.Hamilton-Jacobi formalism of tachyon inflation and cosmological perturbations[J].Journal of Shanghai Normal University(Natural Sciences),2014,43(4):349-358. |
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| Authors: | LIU Daojun |
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| Institution: | LIU Daojun;Shanghai United Center for Astrophysics(SUCA),Shanghai Normal University; |
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| Abstract: | We study the cosmological inflation models driven by the rolling tachyon field which has a Born-Infeld-type action. We drive the Hamilton-Jaeobi equation for the cosmological dynamics of tachyon inflation and the mode equations for the scalar and tensor perturbations of tachyon field and spacetime, then a solution under the slow-roll condition is given. In the end, a realistic model from string theory is discussed. |
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| Keywords: | tachyon inflation Hamihon-Jacobi equation cosmological perturbation |
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