Underdetermination of dark energy
There is compelling evidence that the Universe is undergoing a late phase of accelerated expansion. One of the simplest explanations for this behavior is the presence of dark energy. A plethora of microphysical models for dark energy have been proposed. The hope is that, with the ever increasing pre...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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American Physical Society
2023
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| _version_ | 1811139988856766464 |
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| author | Wolf, WJ Ferreira, P |
| author_facet | Wolf, WJ Ferreira, P |
| author_sort | Wolf, WJ |
| collection | OXFORD |
| description | There is compelling evidence that the Universe is undergoing a late phase of accelerated expansion. One of the simplest explanations for this behavior is the presence of dark energy. A plethora of microphysical models for dark energy have been proposed. The hope is that, with the ever increasing precision of cosmological surveys, it will be possible to precisely pin down the model. We show that this is unlikely and that, at best, we will have a phenomenological description for the microphysics of dark energy. Furthermore, we argue that the current phenomenological prescriptions are ill-equipped for shedding light on the fundamental theory of dark energy. |
| first_indexed | 2024-09-25T04:14:50Z |
| format | Journal article |
| id | oxford-uuid:0a782bbc-1dc4-44e3-b0fd-85db3a7e16a1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-09-25T04:14:50Z |
| publishDate | 2023 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:0a782bbc-1dc4-44e3-b0fd-85db3a7e16a12024-07-17T12:02:07ZUnderdetermination of dark energyJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0a782bbc-1dc4-44e3-b0fd-85db3a7e16a1EnglishSymplectic ElementsAmerican Physical Society2023Wolf, WJFerreira, PThere is compelling evidence that the Universe is undergoing a late phase of accelerated expansion. One of the simplest explanations for this behavior is the presence of dark energy. A plethora of microphysical models for dark energy have been proposed. The hope is that, with the ever increasing precision of cosmological surveys, it will be possible to precisely pin down the model. We show that this is unlikely and that, at best, we will have a phenomenological description for the microphysics of dark energy. Furthermore, we argue that the current phenomenological prescriptions are ill-equipped for shedding light on the fundamental theory of dark energy. |
| spellingShingle | Wolf, WJ Ferreira, P Underdetermination of dark energy |
| title | Underdetermination of dark energy |
| title_full | Underdetermination of dark energy |
| title_fullStr | Underdetermination of dark energy |
| title_full_unstemmed | Underdetermination of dark energy |
| title_short | Underdetermination of dark energy |
| title_sort | underdetermination of dark energy |
| work_keys_str_mv | AT wolfwj underdeterminationofdarkenergy AT ferreirap underdeterminationofdarkenergy |