Numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universe
Abstract We numerically integrate the Einstein’s equations for a spatially flat Friedmann–Lemaire–Robertson–Walker (FLRW) background spacetime with a spatial curvature perturbation and evolving primordial tensor perturbations using the Einstein Toolkit. We find that although the primordial tensor pe...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2018-08-01
|
| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-6103-7 |
| _version_ | 1818308598137094144 |
|---|---|
| author | Ke Wang |
| author_facet | Ke Wang |
| author_sort | Ke Wang |
| collection | DOAJ |
| description | Abstract We numerically integrate the Einstein’s equations for a spatially flat Friedmann–Lemaire–Robertson–Walker (FLRW) background spacetime with a spatial curvature perturbation and evolving primordial tensor perturbations using the Einstein Toolkit. We find that although the primordial tensor perturbation does not play an important role in the evolution of the overdensity produced by the scalar perturbation, there is an obvious imprint left by the primordial tensor perturbation on the distribution of the fractional density perturbation in the nonlinear region. This imprint may be a possible probe of a gravitational waves background in the future. |
| first_indexed | 2024-12-13T07:16:49Z |
| format | Article |
| id | doaj.art-9659ad08b4784ed69b9948a3b25363e1 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-13T07:16:49Z |
| publishDate | 2018-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-9659ad08b4784ed69b9948a3b25363e12022-12-21T23:55:32ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-08-017881710.1140/epjc/s10052-018-6103-7Numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universeKe Wang0National Astronomical Observatories, Chinese Academy of SciencesAbstract We numerically integrate the Einstein’s equations for a spatially flat Friedmann–Lemaire–Robertson–Walker (FLRW) background spacetime with a spatial curvature perturbation and evolving primordial tensor perturbations using the Einstein Toolkit. We find that although the primordial tensor perturbation does not play an important role in the evolution of the overdensity produced by the scalar perturbation, there is an obvious imprint left by the primordial tensor perturbation on the distribution of the fractional density perturbation in the nonlinear region. This imprint may be a possible probe of a gravitational waves background in the future.http://link.springer.com/article/10.1140/epjc/s10052-018-6103-7 |
| spellingShingle | Ke Wang Numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universe European Physical Journal C: Particles and Fields |
| title | Numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universe |
| title_full | Numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universe |
| title_fullStr | Numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universe |
| title_full_unstemmed | Numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universe |
| title_short | Numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universe |
| title_sort | numerical relativity investigation of the effects of gravitational waves on the inhomogeneity of the universe |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-6103-7 |
| work_keys_str_mv | AT kewang numericalrelativityinvestigationoftheeffectsofgravitationalwavesontheinhomogeneityoftheuniverse |