Gravitational baryogenesis.

Gravitational baryogenesis.
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DOI:
10.1103/physrevlett.93.201301
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发表时间:
2004-03
影响因子:
8.6
通讯作者:
H. Davoudiasl;R. Kitano;G. Kribs;H. Murayama;P. Steinhardt
H. Davoudiasl;R. Kitano;G. Kribs;H. Murayama;P. Steinhardt
中科院分区:
物理与天体物理1区
文献类型:
--
作者:
H. Davoudiasl;R. Kitano;G. Kribs;H. Murayama;P. Steinhardt

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我们表明,在膨胀的宇宙中,Ricci标量曲率的导数和重子数电流之间的引力相互作用动态地打破CPT,并结合重子数违反相互作用,可以驱动宇宙走向平衡重子不对称性,这是观测上可以接受的。
We show that a gravitational interaction between the derivative of the Ricci scalar curvature and the baryon-number current dynamically breaks CPT in an expanding Universe and, combined with baryon-number-violating interactions, can drive the Universe towards an equilibrium baryon asymmetry that is observationally acceptable.