Gravitational solitons on Kasner background revisited: the simplest solitons with physical context. (25th June 2019)

• Record Type: Journal Article
• Authors: Karathanasis, Christos; Apostolatos, Theocharis
• Is Part Of: Classical and quantum gravity. Volume 36:Number 14(2019:Jul.)
• Publication Date: 2019-06-25
• Subjects: gravitational solitons -- general relativity -- cosmological models; Quantum gravity -- Periodicals; Gravitation -- Periodicals; Relativity (Physics) -- Periodicals; Space and time -- Periodicals; Periodicals; 521.1
• DOI: 10.1088/1361-6382/ab23c2
• Languages: English
• ISSNs: 0264-9381

Abstract

Abstract: We revise the one-pair complex-poles soliton solutions on a Kasner background. In the literature, these were rejected as solutions with no cosmological interest due to singularities that supposedly show up at space-like infinity. The only accepted solutions of this kind were those with background metric parameter . By computing the scalars we find that there are no scalar singularities at all, for a wide range of the background parameter d . This means that there are actually an enormous number of acceptable simple complex-poles solutions, besides the cases. These solutions are interesting, because they are much simpler than the two-pairs complex poles solutions and, consequently, it is easier to draw conclusions and relate physical phenomena to them.