Recent Advances in Cosmological Singularities

被引：11

作者：

Trivedi, Oem ^{[1
]}

机构：

[1] Ahmedabad Univeristy, Sch Arts & Sci, Ahmadabad 380009, India

来源：

SYMMETRY-BASEL | 2024年 / 16卷 / 03期

关键词：

cosmological singularities; dark energy; spacetime singularities; modified gravity theories; FINITE-TIME SINGULARITIES; SCALAR DARK ENERGY; EQUATION-OF-STATE; MODIFIED GRAVITY; GRAVITATIONAL COLLAPSE; NAKED SINGULARITIES; COSMIC CENSORSHIP; BIG RIP; SUFFICIENT CONDITIONS; UNIVERSE;

D O I：

10.3390/sym16030298

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The discovery of the Universe's late-time acceleration and dark energy has led to a great deal of research into cosmological singularities, and in this brief review, we discuss all the prominent developments in this field for the best part of the last two decades. We discuss the fundamentals of spacetime singularities, after which we discuss in detail all the different forms of cosmological singularities that have been discovered in recent times. We then address methods and techniques to avoid or moderate these singularities in various theories and discuss how these singularities can also occur in non-conventional cosmologies. We then discuss a useful dynamical systems approach to deal with these singularities and finish up with some outlooks for the field. We hope that this work serves as a good resource to anyone who wants to update themselves with the developments in this very exciting area.

引用

页数：41

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