| Record |
| Author |
Asenjo, F.A.; Hojman, S.A. |
| Title |
Class of Exact Solutions for a Cosmological Model of Unified Gravitational and Quintessence Fields |
Type |
|
| Year |
2017 |
Publication |
Foundations Of Physics |
Abbreviated Journal |
Found. Phys. |
| Volume |
47 |
Issue |
7 |
Pages |
887-896 |
| Keywords |
Quintessence; Exact solution; Unification of geometry and dark matter |
| Abstract |
A new approach to tackle Einstein equations for an isotropic and homogeneous Friedmann-Robertson-Walker Universe in the presence of a quintessence scalar field is devised. It provides a way to get a simple exact solution to these equations. This solution determines the quintessence potential uniquely and it differs from solutions which have been used to study inflation previously. It relays on a unification of geometry and dark matter implemented through the definition of a functional relation between the scale factor of the Universe and the quintessence field. For a positive curvature Universe, this solution produces perpetual accelerated expansion rate of the Universe, while the Hubble parameter increases abruptly, attains a maximum value and decreases thereafter. The behavior of this cosmological solution is discussed and its main features are displayed. The formalism is extended to include matter and radiation. |
| Address |
[Asenjo, Felipe A.] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Santiago, Chile, Email: felipe.asenjo@uai.cl; |
| Corporate Author |
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Thesis |
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| Publisher |
Springer |
Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
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Original Title |
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| Series Editor |
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Series Title |
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Abbreviated Series Title |
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| Series Volume |
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Series Issue |
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Edition  |
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| ISSN |
0015-9018 |
ISBN |
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Medium |
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| Area |
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Expedition |
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Conference |
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| Notes |
WOS:000404224500003 |
Approved |
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| Call Number |
UAI @ eduardo.moreno @ |
Serial |
741 |
| Permanent link to this record |
