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arXiv 1011.4337astro-ph.COgr-qchep-phhep-th
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具有非正则标量场和费米子场的宇宙学模型:k-本质,f-本质和g-本质

Cosmological models with non-canonical scalar and fermion fields: k-essence, f-essence and g-essence

Ratbay Myrzakulov

摘要:

本文研究了具有费米子场和非正则动力学项(f-本质)的宇宙学模型。我们还提出了一些重要的减少模型以及它的一些推广。我们还找到了模型的精确解,并研究了这种引力-费米子相互作用对观测到的宇宙加速膨胀的影响。分别作为f-本质和g-本质的特殊约化,构造了几种费米子和玻色-费米子DBI模型,并找到了它们的Chaubergin气体对应物,最后提出了一些弹跳宇宙和循环宇宙的非线性模型。

英文摘要:

In the present work, we study the cosmological model with fermionic field and with the non-canonical kinetic term (f-essence). We also present some important reductions of the model as well as its some generalizations. We also found the exact solution of the model and examine the influence of such gravity-fermion interaction on the observed accelerated expansion of our universe. Several fermionic and bosonic-fermionic DBI models were constructed as some particular reductions of f-essence and g-essence, respectively and their Chaplygin gas counterparts are found. Finally, some nonlinear models of bouncing and cyclic universes are proposed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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