Spinor Quintom Cosmology with Intrinsic Spin
We consider a spinor quintom dark energy model with intrinsic spin, in the framework of Einstein-Cartan-Sciama-Kibble theory. After constructing the mathematical formalism of the model, we obtain the spin contributed total energy-momentum tensor giving the energy density and the pressure of the quin...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2016/3740957 |
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| author | Emre Dil |
| author_facet | Emre Dil |
| author_sort | Emre Dil |
| collection | DOAJ |
| description | We consider a spinor quintom dark energy model with intrinsic spin, in the framework of Einstein-Cartan-Sciama-Kibble theory. After constructing the mathematical formalism of the model, we obtain the spin contributed total energy-momentum tensor giving the energy density and the pressure of the quintom model, and then we find the equation of state parameter, Hubble parameter, deceleration parameter, state finder parameter, and some distance parameter in terms of the spinor potential. Choosing suitable potentials leads to the quintom scenario crossing between quintessence and phantom epochs, or vice versa. Analyzing three quintom scenarios provides stable expansion phases avoiding Big Rip singularities and yielding matter dominated era through the stabilization of the spinor pressure via spin contribution. The stabilization in spinor pressure leads to neglecting it as compared to the increasing energy density and constituting a matter dominated stable expansion epoch. |
| format | Article |
| id | doaj-art-f830c8a1708a40d7bdd3cc6b67a7b4dc |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-f830c8a1708a40d7bdd3cc6b67a7b4dc2025-02-03T06:15:14ZengWileyAdvances in High Energy Physics1687-73571687-73652016-01-01201610.1155/2016/37409573740957Spinor Quintom Cosmology with Intrinsic SpinEmre Dil0Department of Physics, Sinop University, Korucuk, 57000 Sinop, TurkeyWe consider a spinor quintom dark energy model with intrinsic spin, in the framework of Einstein-Cartan-Sciama-Kibble theory. After constructing the mathematical formalism of the model, we obtain the spin contributed total energy-momentum tensor giving the energy density and the pressure of the quintom model, and then we find the equation of state parameter, Hubble parameter, deceleration parameter, state finder parameter, and some distance parameter in terms of the spinor potential. Choosing suitable potentials leads to the quintom scenario crossing between quintessence and phantom epochs, or vice versa. Analyzing three quintom scenarios provides stable expansion phases avoiding Big Rip singularities and yielding matter dominated era through the stabilization of the spinor pressure via spin contribution. The stabilization in spinor pressure leads to neglecting it as compared to the increasing energy density and constituting a matter dominated stable expansion epoch.http://dx.doi.org/10.1155/2016/3740957 |
| spellingShingle | Emre Dil Spinor Quintom Cosmology with Intrinsic Spin Advances in High Energy Physics |
| title | Spinor Quintom Cosmology with Intrinsic Spin |
| title_full | Spinor Quintom Cosmology with Intrinsic Spin |
| title_fullStr | Spinor Quintom Cosmology with Intrinsic Spin |
| title_full_unstemmed | Spinor Quintom Cosmology with Intrinsic Spin |
| title_short | Spinor Quintom Cosmology with Intrinsic Spin |
| title_sort | spinor quintom cosmology with intrinsic spin |
| url | http://dx.doi.org/10.1155/2016/3740957 |
| work_keys_str_mv | AT emredil spinorquintomcosmologywithintrinsicspin |