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Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity
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| Zeitschriftentitel: | Advances in High Energy Physics |
|---|---|
| Personen und Körperschaften: | , |
| In: | Advances in High Energy Physics, 2013, 2013, S. 1-15 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Hindawi Limited
|
| Schlagwörter: |
| author_facet |
Sharif, M. Waheed, Saira Sharif, M. Waheed, Saira |
|---|---|
| author |
Sharif, M. Waheed, Saira |
| spellingShingle |
Sharif, M. Waheed, Saira Advances in High Energy Physics Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity Nuclear and High Energy Physics |
| author_sort |
sharif, m. |
| spelling |
Sharif, M. Waheed, Saira 1687-7357 1687-7365 Hindawi Limited Nuclear and High Energy Physics http://dx.doi.org/10.1155/2013/253985 <jats:p>The study of energy conditions has many significant applications in general relativistic and cosmological contexts. This paper explores the energy conditions in the framework of the most general scalar-tensor theory with field equations involving second-order derivatives. For this purpose, we use flat FRW universe model with perfect fluid matter contents. By taking power law ansatz for scalar field, we discuss the strong, weak, null, and dominant energy conditions in terms of deceleration, jerk, and snap parameters. Some particular cases of this theory like<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mi>k</mml:mi></mml:mrow></mml:math>-essence model, modified gravity theories and so forth. are analyzed with the help of the derived energy conditions, and the possible constraints on the free parameters of the presented models are determined.</jats:p> Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity Advances in High Energy Physics |
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Advances in High Energy Physics |
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| title |
Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_unstemmed |
Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_full |
Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_fullStr |
Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_full_unstemmed |
Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_short |
Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_sort |
energy conditions in a generalized second-order scalar-tensor gravity |
| topic |
Nuclear and High Energy Physics |
| url |
http://dx.doi.org/10.1155/2013/253985 |
| publishDate |
2013 |
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1-15 |
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<jats:p>The study of energy conditions has many significant applications in general relativistic and cosmological contexts. This paper explores the energy conditions in the framework of the most general scalar-tensor theory with field equations involving second-order derivatives. For this purpose, we use flat FRW universe model with perfect fluid matter contents. By taking power law ansatz for scalar field, we discuss the strong, weak, null, and dominant energy conditions in terms of deceleration, jerk, and snap parameters. Some particular cases of this theory like<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mi>k</mml:mi></mml:mrow></mml:math>-essence model, modified gravity theories and so forth. are analyzed with the help of the derived energy conditions, and the possible constraints on the free parameters of the presented models are determined.</jats:p> |
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| author | Sharif, M., Waheed, Saira |
| author_facet | Sharif, M., Waheed, Saira, Sharif, M., Waheed, Saira |
| author_sort | sharif, m. |
| container_start_page | 1 |
| container_title | Advances in High Energy Physics |
| container_volume | 2013 |
| description | <jats:p>The study of energy conditions has many significant applications in general relativistic and cosmological contexts. This paper explores the energy conditions in the framework of the most general scalar-tensor theory with field equations involving second-order derivatives. For this purpose, we use flat FRW universe model with perfect fluid matter contents. By taking power law ansatz for scalar field, we discuss the strong, weak, null, and dominant energy conditions in terms of deceleration, jerk, and snap parameters. Some particular cases of this theory like<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mi>k</mml:mi></mml:mrow></mml:math>-essence model, modified gravity theories and so forth. are analyzed with the help of the derived energy conditions, and the possible constraints on the free parameters of the presented models are determined.</jats:p> |
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| spelling | Sharif, M. Waheed, Saira 1687-7357 1687-7365 Hindawi Limited Nuclear and High Energy Physics http://dx.doi.org/10.1155/2013/253985 <jats:p>The study of energy conditions has many significant applications in general relativistic and cosmological contexts. This paper explores the energy conditions in the framework of the most general scalar-tensor theory with field equations involving second-order derivatives. For this purpose, we use flat FRW universe model with perfect fluid matter contents. By taking power law ansatz for scalar field, we discuss the strong, weak, null, and dominant energy conditions in terms of deceleration, jerk, and snap parameters. Some particular cases of this theory like<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mrow><mml:mi>k</mml:mi></mml:mrow></mml:math>-essence model, modified gravity theories and so forth. are analyzed with the help of the derived energy conditions, and the possible constraints on the free parameters of the presented models are determined.</jats:p> Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity Advances in High Energy Physics |
| spellingShingle | Sharif, M., Waheed, Saira, Advances in High Energy Physics, Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity, Nuclear and High Energy Physics |
| title | Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_full | Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_fullStr | Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_full_unstemmed | Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_short | Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| title_sort | energy conditions in a generalized second-order scalar-tensor gravity |
| title_unstemmed | Energy Conditions in a Generalized Second-Order Scalar-Tensor Gravity |
| topic | Nuclear and High Energy Physics |
| url | http://dx.doi.org/10.1155/2013/253985 |