论文标题
DGP Brane宇宙学中的重力男性生成
Gravitational baryogenesis in DGP brane cosmology
论文作者
论文摘要
我们通过在Dvali-Gabadadze-Porrati（DGP）Brane宇宙学背景下使用重力男性生成机制来考虑物质和反物质的失衡。通过考虑DGP Brane模型中平坦的Friedmann-Lemaitre-Robertson-Walker（FLRW）度量，我们发现，对于以辐射为主的宇宙而言，$ W = 1/3 $，Baryon数量密度与熵的比率不是重力生成的比率，而不是零，与普通的普通总体相关性相反。此外，我们研究了巴里昂数量密度与熵的比率与DGP宇宙学中的观察性约束。
We consider the imbalance of matter and antimatter by using a gravitational baryogenesis mechanism in the background of Dvali-Gabadadze-Porrati (DGP) brane cosmology. By taking into account a flat Friedmann-Lemaitre-Robertson-Walker (FLRW) metric in the DGP brane model, we find that for a radiation dominated universe, $w = 1/3$, the ratio of baryon number density to entropy from the gravitational baryogenesis is not zero, contrary to ordinary general relativity. Also, we study the ratio of baryon number density to entropy against the observational constraints in DGP cosmology.
