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Instability Model of the Universe with De Sitter Beginning
General Relativity and Quantum Cosmology · Submitted 21 Aug 2015
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim The conclusion is made that de Sitter stage of the Universe evolution most likely should be preceded by the ultrarelativistic stage.
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The abstract, sentence by sentence
The physical instability of the Universe model with de Sitter beginning is proved in this article. 1. It is shown that even a small addition of ultrarelativistic matter turns the de Sitter Universe into the Universe with finite past. 2. Constant solution of equation of model with constant scalar field is shown to be instable. 3. It is also shown that lateral gravitational perturbations of such model make it instable near of cosmological singularity. The conclusion is made that de Sitter stage of the Universe evolution most likely should be preceded by the ultrarelativistic stage.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The physical instability of the Universe model with de Sitter beginning is proved in this article. 1. | contribution 0.65 | 0.92 | 0.16 | asserted 1.00 |
| s1 | It is shown that even a small addition of ultrarelativistic matter turns the de Sitter Universe into the Universe with finite past. 2. | result 1.00 | 0.90 | 0.12 | asserted 1.00 |
| s2 | Constant solution of equation of model with constant scalar field is shown to be instable. 3. | result 0.99 | 0.90 | 0.05 | asserted 1.00 |
| s3 | It is also shown that lateral gravitational perturbations of such model make it instable near of cosmological singularity. | result 0.99 | 0.88 | 0.04 | asserted 1.00 |
| s4 | The conclusion is made that de Sitter stage of the Universe evolution most likely should be preceded by the ultrarelativistic stage. | interpretation 0.98 | 0.76 | 0.93 | hedged possibility 1.00 |
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The paper
Original abstract
The physical instability of the Universe model with de Sitter beginning is proved in this article. 1. It is shown that even a small addition of ultrarelativistic matter turns the de Sitter Universe into the Universe with finite past. 2. Constant solution of equation of model with constant scalar field is shown to be instable. 3. It is also shown that lateral gravitational perturbations of such model make it instable near of cosmological singularity. The conclusion is made that de Sitter stage of the Universe evolution most likely should be preceded by the ultrarelativistic stage.
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How the literature uses it
2 arXiv papers cite this in 2 sentences
Papers citing it · 1 sentence without a confident label
Cites it as support 1 paper
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Thus, as was noticed in [ref] , an account of gravitational perturbations in energy balance of the Universe at its early stages really discards primordial inflationary expansion stage and puts it on the second place after ultrarelativstic stage.
Macroscopic Einstein Equations for a Cosmological Model with $\lambda$-term · Discussion of Results · 0.98
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