Linear and nonlinear perturbations in dark energy models
I present linear and second-order perturbation theory in dark energy models with an explicit interaction to matter in view of its application to N-body simulations and nonlinear phenomena. Several new or generalized results are obtained: the general equations for the linear perturbation growth, an a...
Gespeichert in:
| 1. Verfasser: | |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
28 May 2004
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2004, Jahrgang: 69, Heft: 10 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.69.103524 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.69.103524 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.69.103524 
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| Verfasserangaben: | Luca Amendola, INAF/Osservatorio Astronomico di Roma, Viale Frascati 33, 00040 Monte Porzio Catone (Roma), Italy |
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| 520 | |a I present linear and second-order perturbation theory in dark energy models with an explicit interaction to matter in view of its application to N-body simulations and nonlinear phenomena. Several new or generalized results are obtained: the general equations for the linear perturbation growth, an analytical expression for the bias induced by a species-dependent interaction, the Yukawa correction to the gravitational potential due to dark energy interaction, and the second-order perturbation equations in coupled dark energy and their Newtonian limit. I also show that a density-dependent effective dark energy mass arises if the dark energy coupling is varying. | ||
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