| 摘要: |
| 假设在宇宙暴涨时期,宇宙学“常数”不再是一个常数而是一个变化的量,并且由于它与暴涨场之间具有的相互作用,解决了宇宙学常数的精细调节问题.同时,这种相互作用也使得暴涨宇宙模型不仅能够预言大的张标比、正确的扰动谱,而且能预言大的谱指数跑动.此外,暴涨所需要的e-folding数也大到足够解决大爆炸宇宙学中的视界、平坦性等问题. |
| 关键词: 暴涨宇宙 宇宙学常数 张标比 谱指数 |
| DOI： |
| 分类号: |
| 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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| Inflation and the cosmological constant |
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FENG Chaojun, LI Xinzhou
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Shanghai United Center for Astrophysics(SUCA),Shanghai Normal University
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| Abstract: |
| By assuming the cosmological “constant” is no longer a constant during the inflation epoch,it is found that the cosmological constant fine-tuning problem is solved.In the meanwhile,inflation models could predict a large tensor-to-scalar ratio,correct power spectral index and a larger running of it.Furthermore,the e-folding number is large enough to overcome the horizon,flatness problems in the Big Bang cosmology. |
| Key words: inflation cosmological constant tensor-to-scalar ratio power spectra |
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