Dark energy in the swampland
In this article, we study the implications of string swampland criteria for dark energy in view of ongoing and future cosmological observations. If string theory should be the ultimate quantum gravity theory, there is evidence that exact de Sitter solutions with a positive cosmological constant cann...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
6 December 2018
|
| In: |
Physical review
Year: 2018, Jahrgang: 98, Heft: 1 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.98.123502 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.98.123502 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.98.123502 
|
| Verfasserangaben: | Lavinia Heisenberg, Matthias Bartelmann, Robert Brandenberger, and Alexandre Refregier |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1587398141 | ||
| 003 | DE-627 | ||
| 005 | 20220815101307.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 190208s2018 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1103/PhysRevD.98.123502 |2 doi | |
| 035 | |a (DE-627)1587398141 | ||
| 035 | |a (DE-576)517398141 | ||
| 035 | |a (DE-599)BSZ517398141 | ||
| 035 | |a (OCoLC)1341037161 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Heisenberg, Lavinia |e VerfasserIn |0 (DE-588)1140139835 |0 (DE-627)898257093 |0 (DE-576)428112315 |4 aut | |
| 245 | 1 | 0 | |a Dark energy in the swampland |c Lavinia Heisenberg, Matthias Bartelmann, Robert Brandenberger, and Alexandre Refregier |
| 264 | 1 | |c 6 December 2018 | |
| 300 | |a 5 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 14.08.2020 | ||
| 520 | |a In this article, we study the implications of string swampland criteria for dark energy in view of ongoing and future cosmological observations. If string theory should be the ultimate quantum gravity theory, there is evidence that exact de Sitter solutions with a positive cosmological constant cannot describe the fate of the late-time universe. Even though cosmological models with dark energy given by a scalar field π evolving in time are not in direct tension with string theory, they have to satisfy the swampland criteria |Δπ|<d∼O(1) and |V′|/V>c∼O(1), where V is the scalar field potential. In view of the restrictive implications that the swampland criteria have on dark energy, we investigate the accuracy needed for future observations to tightly constrain standard dark-energy models. We find that current 3−σ constraints with c≲1.35 are still well in agreement with the string swampland criteria. However, stage-4 surveys such as Euclid, LSST, and DESI, tightly constraining the equation of state w(z), will start putting surviving quintessence models into tensions with the string swampland criteria by demanding c<0.4. We further investigate whether any idealized futuristic survey will ever be able to give a decisive answer to the question whether the cosmological constant would be preferred over a time-evolving dark-energy model within the swampland criteria. Hypothetical surveys with a reduction in the uncertainties by a factor of ∼20 compared to Euclid would be necessary to reveal strong tension between quintessence models obeying the string swampland criteria and observations by pushing the allowed values down to c<0.1. In view of such perspectives, there will be fundamental observational limitations with future surveys. | ||
| 700 | 1 | |a Bartelmann, Matthias |d 1965- |e VerfasserIn |0 (DE-588)141554185 |0 (DE-627)629953090 |0 (DE-576)170611779 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Physical review |d Ridge, NY : American Physical Society, 2016 |g 98(2018,1) Artikel-Nummer 123502, 5 Seiten |h Online-Ressource |w (DE-627)846313510 |w (DE-600)2844732-3 |w (DE-576)454495811 |x 2470-0029 |7 nnas |a Dark energy in the swampland |
| 773 | 1 | 8 | |g volume:98 |g year:2018 |g number:1 |g extent:5 |a Dark energy in the swampland |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1103/PhysRevD.98.123502 |x Verlag |x Resolving-System |3 Volltext |
| 856 | 4 | 0 | |u https://link.aps.org/doi/10.1103/PhysRevD.98.123502 |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20190208 | ||
| 993 | |a Article | ||
| 994 | |a 2018 | ||
| 998 | |g 1140139835 |a Heisenberg, Lavinia |m 1140139835:Heisenberg, Lavinia |p 1 |x j | ||
| 998 | |g 141554185 |a Bartelmann, Matthias |m 141554185:Bartelmann, Matthias |d 130000 |d 130300 |e 130000PB141554185 |e 130300PB141554185 |k 0/130000/ |k 1/130000/130300/ |p 2 | ||
| 999 | |a KXP-PPN1587398141 |e 305532563X | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"name":{"displayForm":["Lavinia Heisenberg, Matthias Bartelmann, Robert Brandenberger, and Alexandre Refregier"]},"id":{"eki":["1587398141"],"doi":["10.1103/PhysRevD.98.123502"]},"physDesc":[{"extent":"5 S."}],"recId":"1587398141","origin":[{"dateIssuedKey":"2018","dateIssuedDisp":"6 December 2018"}],"relHost":[{"part":{"year":"2018","extent":"5","volume":"98","text":"98(2018,1) Artikel-Nummer 123502, 5 Seiten","issue":"1"},"id":{"eki":["846313510"],"issn":["2470-0029"],"zdb":["2844732-3"]},"titleAlt":[{"title":"Particles, fields, gravitation, and cosmology"}],"pubHistory":["3rd series, volume 93, number 1 (January 2016)-"],"name":{"displayForm":["published by American Physical Society"]},"corporate":[{"display":"American Physical Society","role":"isb"}],"title":[{"title_sort":"Physical review","title":"Physical review"}],"note":["Gesehen am 14.03.2023"],"type":{"bibl":"periodical","media":"Online-Ressource"},"language":["eng"],"origin":[{"dateIssuedDisp":"2016-","dateIssuedKey":"2016","publisherPlace":"Ridge, NY","publisher":"American Physical Society"}],"disp":"Dark energy in the swamplandPhysical review","recId":"846313510","physDesc":[{"extent":"Online-Ressource"}]}],"person":[{"display":"Heisenberg, Lavinia","family":"Heisenberg","given":"Lavinia","role":"aut"},{"display":"Bartelmann, Matthias","role":"aut","given":"Matthias","family":"Bartelmann"}],"type":{"bibl":"article-journal","media":"Online-Ressource"},"language":["eng"],"note":["Gesehen am 14.08.2020"],"title":[{"title_sort":"Dark energy in the swampland","title":"Dark energy in the swampland"}]} | ||
| SRT | |a HEISENBERGDARKENERGY6201 | ||