具有汤川型相互作用的费米宇宙学
Fermionic cosmologies with Yukawa type interactions
摘要：
在这项工作中，我们讨论了如果费米源可以负责加速周期的Friedmann-Robertson-Walker空间平坦的宇宙，包括一个通常的自相互作用势的Nambu-Jona-Lasinio型与费米标量相互作用势的汤川型。结果表明，这些势的组合可以促进一个最初的加速期，经过一个中间减速时代，与最终的永恒加速期，其中自相互作用的贡献占主导地位。
英文摘要：
In this work we discuss if fermionic sources could be responsible for accelerated periods in a Friedmann-Robertson-Walker spatially flat universe, including a usual self-interaction potential of the Nambu-Jona-Lasinio type together with a fermion-scalar interaction potential of the Yukawa type. The results show that the combination of these potentials could promote an initially accelerated period, going through a middle decelerated era, with a final eternal accelerated period, where the self-interaction contribution dominates.
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