Scale-invariant alternatives to general relativity: III. The inflation-dark energy connection
We discuss the cosmological phenomenology of biscalar-tensor models displaying a maximally symmetric Einstein-frame kinetic sector and constructed on the basis of scale symmetry and volume-preserving diffeomorphisms. These theories contain a single dimensionful parameter Λ0—associated with the invar...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
12 March 2019
|
| In: |
Physical review
Year: 2019, Jahrgang: 99, Heft: 6, Pages: 063512 |
| ISSN: | 2470-0029 |
| DOI: | 10.1103/PhysRevD.99.063512 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1103/PhysRevD.99.063512 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.99.063512 
|
| Verfasserangaben: | Santiago Casas, Georgios K. Karananas, Martin Pauly, Javier Rubio |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1663520674 | ||
| 003 | DE-627 | ||
| 005 | 20220816141121.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 190424s2019 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1103/PhysRevD.99.063512 |2 doi | |
| 035 | |a (DE-627)1663520674 | ||
| 035 | |a (DE-599)KXP1663520674 | ||
| 035 | |a (OCoLC)1341210793 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Casas, Santiago |d 1987- |e VerfasserIn |0 (DE-588)1084243148 |0 (DE-627)848481461 |0 (DE-576)45626342X |4 aut | |
| 245 | 1 | 0 | |a Scale-invariant alternatives to general relativity |b III. The inflation-dark energy connection |c Santiago Casas, Georgios K. Karananas, Martin Pauly, Javier Rubio |
| 264 | 1 | |c 12 March 2019 | |
| 300 | |a 18 | ||
| 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 24.04.2019 | ||
| 520 | |a We discuss the cosmological phenomenology of biscalar-tensor models displaying a maximally symmetric Einstein-frame kinetic sector and constructed on the basis of scale symmetry and volume-preserving diffeomorphisms. These theories contain a single dimensionful parameter Λ0—associated with the invariance under the aforementioned restricted coordinate transformations—and a massless dilaton field. At large field values these scenarios lead to inflation with no generation of isocurvature perturbations. The corresponding predictions depend only on two dimensionless parameters, which characterize the curvature of the field manifold and the leading-order behavior of the inflationary potential. For Λ0=0 the scale symmetry is unbroken and the dilaton admits only derivative couplings to matter, evading all fifth-force constraints. For Λ0≠0 the field acquires a runaway potential that can support a dark-energy-dominated era at late times. We confront a minimalistic realization of this appealing framework with observations using a Markov chain Monte Carlo approach, with likelihoods from present baryon acoustic oscillation, type Ia supernova, and cosmic microwave background data. A Bayesian model comparison indicates a preference for the considered model over ΛCDM, under certain assumptions for the priors. The impact of possible consistency relations among the early and late Universe dynamics that can appear within this setting is discussed with the use of correlation matrices. The results indicate that a precise determination of the inflationary observables and the dark energy equation of state could significantly constrain the model parameters. | ||
| 700 | 1 | |a Pauly, Martin |d 1991- |e VerfasserIn |0 (DE-588)1182259103 |0 (DE-627)1662592159 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Physical review |d Ridge, NY : American Physical Society, 2016 |g 99(2019,6) Artikel-Nummer 063512, 18 Seiten |h Online-Ressource |w (DE-627)846313510 |w (DE-600)2844732-3 |w (DE-576)454495811 |x 2470-0029 |7 nnas |a Scale-invariant alternatives to general relativity III. The inflation-dark energy connection |
| 773 | 1 | 8 | |g volume:99 |g year:2019 |g number:6 |g pages:063512 |g extent:18 |a Scale-invariant alternatives to general relativity III. The inflation-dark energy connection |
| 856 | 4 | 0 | |u https://doi.org/10.1103/PhysRevD.99.063512 |x Verlag |x Resolving-System |3 Volltext |
| 856 | 4 | 0 | |u https://link.aps.org/doi/10.1103/PhysRevD.99.063512 |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20190424 | ||
| 993 | |a Article | ||
| 994 | |a 2019 | ||
| 998 | |g 1182259103 |a Pauly, Martin |m 1182259103:Pauly, Martin |d 130000 |d 130300 |e 130000PP1182259103 |e 130300PP1182259103 |k 0/130000/ |k 1/130000/130300/ |p 3 | ||
| 999 | |a KXP-PPN1663520674 |e 3453058364 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"recId":"1663520674","language":["eng"],"type":{"media":"Online-Ressource","bibl":"article-journal"},"note":["Gesehen am 24.04.2019"],"title":[{"subtitle":"III. The inflation-dark energy connection","title":"Scale-invariant alternatives to general relativity","title_sort":"Scale-invariant alternatives to general relativity"}],"person":[{"roleDisplay":"VerfasserIn","display":"Casas, Santiago","role":"aut","family":"Casas","given":"Santiago"},{"role":"aut","display":"Pauly, Martin","roleDisplay":"VerfasserIn","given":"Martin","family":"Pauly"}],"relHost":[{"name":{"displayForm":["published by American Physical Society"]},"id":{"zdb":["2844732-3"],"eki":["846313510"],"issn":["2470-0029"]},"origin":[{"publisherPlace":"Ridge, NY","publisher":"American Physical Society","dateIssuedKey":"2016","dateIssuedDisp":"2016-"}],"physDesc":[{"extent":"Online-Ressource"}],"title":[{"title":"Physical review","title_sort":"Physical review"}],"recId":"846313510","corporate":[{"role":"isb","roleDisplay":"Herausgebendes Organ","display":"American Physical Society"}],"language":["eng"],"disp":"Scale-invariant alternatives to general relativity III. The inflation-dark energy connectionPhysical review","note":["Gesehen am 14.03.2023"],"type":{"bibl":"periodical","media":"Online-Ressource"},"titleAlt":[{"title":"Particles, fields, gravitation, and cosmology"}],"part":{"volume":"99","text":"99(2019,6) Artikel-Nummer 063512, 18 Seiten","extent":"18","year":"2019","pages":"063512","issue":"6"},"pubHistory":["3rd series, volume 93, number 1 (January 2016)-"]}],"physDesc":[{"extent":"18 S."}],"id":{"eki":["1663520674"],"doi":["10.1103/PhysRevD.99.063512"]},"origin":[{"dateIssuedKey":"2019","dateIssuedDisp":"12 March 2019"}],"name":{"displayForm":["Santiago Casas, Georgios K. Karananas, Martin Pauly, Javier Rubio"]}} | ||
| SRT | |a CASASSANTISCALEINVAR1220 | ||