arXiv Open Access 2014

Generalized entropies and the expansion law of the universe

Fatemeh Lalehgani Dezaki Behrouz Mirza

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Abstrak

We suggest that using the first law of thermodynamics is a convenient method to obtain a correct form of the expansion law of the universe \cite{T. Padmanabhan1}. We will, then, use this idea to obtain the expansion law for a Kodama observer. By using the expansion law for a Kodama observer, we can obtain the dynamic equation of the FRW universe for deformed Horava-Lifshitz gravity. The use of the first law of thermodynamics also leads to a new approach for obtaining the Friedmann equations for f(R) and scalar tensor gravities.

Topik & Kata Kunci

gr-qc

Penulis (2)

Fatemeh Lalehgani Dezaki

Behrouz Mirza

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Dezaki, F.L., Mirza, B. (2014). Generalized entropies and the expansion law of the universe. https://arxiv.org/abs/1406.3712

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Informasi Jurnal

Tahun Terbit: 2014
Bahasa: en
Sumber Database: arXiv
Akses: Open Access ✓