| 无穷级数单标量场暴涨宇宙模型与原初引力波 |
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| 引用本文： | 冯朝君,李新洲. 无穷级数单标量场暴涨宇宙模型与原初引力波[J]. 上海师范大学学报(自然科学版), 2014, 43(4): 391-398 |
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| 作者姓名： | 冯朝君 李新洲 |
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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： | 国家自然科学基金(11047138);上海市晨光计划(12CG51);国家教育基金(2009312711004);上海市自然科学基金(10ZR1422000) |
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| 摘 要： | 通过对宇宙微波背景辐射光子极化的观测,可以精确测量张标比.在对暴涨宇宙模型进行限制的时候,它将提供一个非常有力的工具.就一个单标量场暴涨模型而言,要同时预言比较大的张标比和谱指数跑动是有困难的.为了试图解决这一问题,本文作者提出了一种具有幂级数形式势能的单暴涨场模型.研究表明,这个具有无穷多项势能的暴涨模型不仅理论上是自洽的,而且能够缓解上述问题.
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| 关 键 词： | 张标比 谱指数 谱指数跑动 幂级数 暴涨宇宙 |
| 收稿时间： | 2014-06-02 |
Power series inflation and primordial gravitational waves |
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| FENG Chaojun and LI Xinzhou. Power series inflation and primordial gravitational waves[J]. Journal of Shanghai Normal University(Natural Sciences), 2014, 43(4): 391-398 |
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| Authors: | FENG Chaojun and LI Xinzhou |
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| Affiliation: | FENG Chaojun;LI Xinzhou;Shanghai United Center for Astrophysics(SUCA),Shanghai Normal University; |
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| Abstract: | The tensor-to-scalar ratio can be measured by observing the polarization of photos in the cosmic microwave back- ground. It shows very strong power on constraining i~fflation models. However, for a single field inflation model, it can not predict both a large tensor-to-scalar ratio and a large running of the scalar power spectral index. To solve this problem, the authors propose an inflation model with power series potential. It is found that this model is consistent with latest observations. |
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| Keywords: | tensor-to-scalar ratio spectral index running of spectral index power series inflation |
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