$f(R)$中各向异性对重子生成的影响-引力理论
Anisotropy effects on Baryogenesis in $f(R)$-Theories of Gravity
摘要：
研究了各向异性度规下的引力$f(R)$理论及其对重子数熵比的影响。在$f(R)$引力场的背景下，研究了基于Ricci标量曲率导数与重子数流的CPT破坏引力相互作用的引力重子生成机制.研究了Bianchi I型宇宙中的引力重子生成。我们从$f(R)$ -引力理论的角度考察了宇宙各向异性对重子不对称性的影响及其对辐射主导区域的$n_{b}/s$的影响。
英文摘要：
We study the $f(R)$ theory of gravity in an anisotropic metric and its effect on the baryon number to entropy ratio. The mechanism of gravitational baryogenesis based on the CPT-violating gravitational interaction between derivative of the Ricci scalar curvature and the baryon-number current is investigated in the context of the $f(R)$ gravity. The gravitational baryogenesis in the Bianchi type I universe is examined. We survey the effect of anisotropy of the universe on the baryon asymmetry from point of view the $f(R)$-theories of gravity and its effect on $n_{b}/s$ for radiation dominant regime.
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