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arXiv 1105.5301gr-qc
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用非线性电动力学研究磁性宇宙中的广义热力学第二定律

A Study of Generalized Second Law of Thermodynamics in Magnetic Universe in the light of Non-Linear Electrodynamics

Tanwi Bandyopadhyay, Ujjal Debnath

摘要:

在这项工作中,我们考虑了非线性电动力学的磁宇宙。考虑了宇宙中只有物质和磁场时非平坦FRW模型的爱因斯坦场方程。本文利用吉布斯定律和热力学热力学第一定律,讨论了在相互作用和非相互作用情况下,广义热力学第二定律在以哈勃视界、视视界、粒子视界和事件视界为边界的磁性宇宙中的适用性。结果表明,对于哈勃视界、视视界和粒子视界,GSL总是满足的,而对于事件视界,GSL在初始阶段是违反的,在宇宙的晚期才满足。

英文摘要:

In this work, we have considered the magnetic universe in non-linear electrodynamics. The Einstein's field equations for non-flat FRW model have been considered when the universe is filled with the matter and magnetic field only. We have discussed the validity of the generalized second law of thermodynamics of the magntic universe bounded by Hubble, apparent, particle and event horizons using Gibb's law and the first law of thermodynamics for interacting and non-interacting scenarios. It has been shown that the GSL is always satisfied for Hubble, apparent and particle horizons but for event horizon, the GSL is violated initially and satisfied at late stage of the universe.

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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