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arXiv 1111.5183gr-qc
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封闭和开放宇宙学模型的标量场势

Scalar field potentials for closed and open cosmological models

Alexander Y. Kamenshchik, Serena Manti

摘要:

我们开发了一种重建标量场或快子场的势的技术,在封闭和开放的各向同性宇宙学模型中再现给定的宇宙学演化。这样的潜力是明确写下来的情况下,由一个通用的正压流体和辐射加上一个宇宙学常数的情况下,一个标量场驱动的演变。对于快子场和伪快子场,在某些特殊情况下,对应于正压指数的特定值,重建了位势。

英文摘要:

We develop a technique for the reconstruction of the potential for a scalar field or a tachyon field, reproducing a given cosmological evolution in a closed and open isotropic cosmological models. Such potentials are explicitly written down for the cases of the evolutions driven by a generic barotropic fluid and by radiation plus a cosmological constant, for the case of a scalar field. For tachyon and pseudo-tachyon fields the potentials are reconstructed for some special cases, corresponding to particular values of the barotropic index.

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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