暖膨胀和沼泽地猜想的非平衡热力学研究

IF 1.9 4区 物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY
Pramana Pub Date : 2024-08-19 DOI:10.1007/s12043-024-02821-3
Akash Bose, Subenoy Chakraborty
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引用次数: 0

摘要

本研究从非平衡热力学的角度探讨了暖膨胀情景。由于存在相互作用的双流体系统,暖膨胀中的耗散机制可视为热力学二阶非平衡描述中的有效体积粘性压力。研究发现,相互作用项与所形成粒子的焓密度成正比。利用慢滚近似分析了暖膨胀,并得到了相互作用项的表达式。非平衡热力学处方中的暖膨胀公式以 "lemma "的形式给出。阶式 2 利用弗里德曼方程显示了慢滚近似与类稳态辐射浴之间的相互关系。最后,从沼泽地猜想的角度对暖膨胀进行了研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A non-equilibrium thermodynamical study of warm inflation and swampland conjectures

The present work deals with warm inflationary scenario from the viewpoint of non-equilibrium thermodynamics. Due to the interacting two-fluid system, the dissipative mechanism in warm inflation can be considered as effective bulk viscous pressure in second-order non-equilibrium description of thermodynamics. It is found that the interaction term is proportional to the enthalpy density of the formed particles. The warm inflation has been analysed using slow-roll approximation and an expression for the interaction term has been obtained. The formulation of warm inflation in the non-equilibrium thermodynamical prescription has been presented as a lemma. Lemma 2 shows the inter-relation between slow-roll approximation and quasistable radiation bath using the Friedmann equations. Finally, warm inflation has been examined from the point of view of swampland conjectures.

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来源期刊
Pramana
Pramana 物理-物理:综合
CiteScore
3.60
自引率
7.10%
发文量
206
审稿时长
3 months
期刊介绍: Pramana - Journal of Physics is a monthly research journal in English published by the Indian Academy of Sciences in collaboration with Indian National Science Academy and Indian Physics Association. The journal publishes refereed papers covering current research in Physics, both original contributions - research papers, brief reports or rapid communications - and invited reviews. Pramana also publishes special issues devoted to advances in specific areas of Physics and proceedings of select high quality conferences.
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