Hubble Parameter Corrected Interactions in Cosmology
We make steps in a new direction by considering fluids with EoS of more general form F(ρ,P)=0. It is thought that there should be interaction between cosmic fluids, but this assumption for this stage carries only phenomenological character opening a room for different kinds of manipulations. In this...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2014/129085 |
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| author | J. Sadeghi M. Khurshudyan M. Hakobyan H. Farahani |
| author_facet | J. Sadeghi M. Khurshudyan M. Hakobyan H. Farahani |
| author_sort | J. Sadeghi |
| collection | DOAJ |
| description | We make steps in a new direction by considering fluids with EoS of more general form F(ρ,P)=0. It is thought that there should be interaction between cosmic fluids, but this assumption for this stage carries only phenomenological
character opening a room for different kinds of manipulations. In this paper we will consider a modification of an interaction Q, where we accept that interaction parameter b1 (order of unity) in Q=3Hb1ρ is time dependent and presented as a linear function of Hubble parameter H of the form b0+btH, where b and b0 are constants. We consider two different models including modified Chaplygin gas and polytropic gas which have bulk viscosity. Then, we investigate problem numerically and analyze behavior of different cosmological parameters concerning fluids and behavior of the universe. |
| format | Article |
| id | doaj-art-67c2bbf7eac744dd89bdbd39dacc9b83 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-67c2bbf7eac744dd89bdbd39dacc9b832025-02-03T05:50:26ZengWileyAdvances in High Energy Physics1687-73571687-73652014-01-01201410.1155/2014/129085129085Hubble Parameter Corrected Interactions in CosmologyJ. Sadeghi0M. Khurshudyan1M. Hakobyan2H. Farahani3Department of Physics, Mazandaran University, P.O. Box 47416-95447, Babolsar, IranDepartment of Theoretical Physics, Yerevan State University, 1 Alex Manoogian, 0025 Yerevan, ArmeniaA.I. Alikhanyan National Science Laboratory, Alikhanian Brothers Street, Yerevan, ArmeniaDepartment of Physics, Mazandaran University, P.O. Box 47416-95447, Babolsar, IranWe make steps in a new direction by considering fluids with EoS of more general form F(ρ,P)=0. It is thought that there should be interaction between cosmic fluids, but this assumption for this stage carries only phenomenological character opening a room for different kinds of manipulations. In this paper we will consider a modification of an interaction Q, where we accept that interaction parameter b1 (order of unity) in Q=3Hb1ρ is time dependent and presented as a linear function of Hubble parameter H of the form b0+btH, where b and b0 are constants. We consider two different models including modified Chaplygin gas and polytropic gas which have bulk viscosity. Then, we investigate problem numerically and analyze behavior of different cosmological parameters concerning fluids and behavior of the universe.http://dx.doi.org/10.1155/2014/129085 |
| spellingShingle | J. Sadeghi M. Khurshudyan M. Hakobyan H. Farahani Hubble Parameter Corrected Interactions in Cosmology Advances in High Energy Physics |
| title | Hubble Parameter Corrected Interactions in Cosmology |
| title_full | Hubble Parameter Corrected Interactions in Cosmology |
| title_fullStr | Hubble Parameter Corrected Interactions in Cosmology |
| title_full_unstemmed | Hubble Parameter Corrected Interactions in Cosmology |
| title_short | Hubble Parameter Corrected Interactions in Cosmology |
| title_sort | hubble parameter corrected interactions in cosmology |
| url | http://dx.doi.org/10.1155/2014/129085 |
| work_keys_str_mv | AT jsadeghi hubbleparametercorrectedinteractionsincosmology AT mkhurshudyan hubbleparametercorrectedinteractionsincosmology AT mhakobyan hubbleparametercorrectedinteractionsincosmology AT hfarahani hubbleparametercorrectedinteractionsincosmology |