暴涨宇宙与宇宙学常数问题

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.

Inflation and the cosmological constant

By assuming the cosmological ＂constant＂ is no longer a constant during the inflation epoch, it is found that the cosmol- ogical 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.