FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity
In this paper, we aim to describe the cosmic late-time acceleration of the Universe in f(R,Lm) gravity framework proposed by Harko (2010) with the help of an equation of state for strange quark matter. To achieve this, we adopt a specific form of f(R,Lm) gravity as f(R,Lm) =R/2}+ Lnm, where n is ar...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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V.N. Karazin Kharkiv National University Publishing
2023-12-01
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| Series: | East European Journal of Physics |
| Subjects: | |
| Online Access: | https://periodicals.karazin.ua/eejp/article/view/22178 |
| _version_ | 1797428028902473728 |
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| author | Vasudeo Patil Jeevan Pawde Rahul Mapari Sachin Waghmare |
| author_facet | Vasudeo Patil Jeevan Pawde Rahul Mapari Sachin Waghmare |
| author_sort | Vasudeo Patil |
| collection | DOAJ |
| description |
In this paper, we aim to describe the cosmic late-time acceleration of the Universe in f(R,Lm) gravity framework proposed by Harko (2010) with the help of an equation of state for strange quark matter. To achieve this, we adopt a specific form of f(R,Lm) gravity as f(R,Lm) =R/2}+ Lnm, where n is arbitrary constants. Here we utilize a hybrid scale factor to resolve the modified field equations in the context of f(R,Lm) gravity for an isotropic and homogeneous Friedmann–Lemaître–Robertson–Walker (FLRW) metric in presence of strange quark matter (SQM). Also, we analyze the dynamics of energy density, pressure and the state finder parameters and explained the distinctions between our model and the current dark energy models in the presence of SQM. We observed a transition from an accelerating to a decelerating phase in the Universe, followed by a return to an accelerating phase at late times. Also, we analyzed the state finder diagnostic as well equation of state parameter and found that the model exhibited quintessence-like behavior. The conclusion drawn from our investigation was that the proposed f(R, Lm) cosmological model aligns well with recent observational studies and effectively describes the cosmic acceleration observed during late times.
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| first_indexed | 2024-03-09T08:53:15Z |
| format | Article |
| id | doaj.art-8ba3e9ae3f6c40d5a33e360616dd9ce2 |
| institution | Directory Open Access Journal |
| issn | 2312-4334 2312-4539 |
| language | English |
| last_indexed | 2024-03-09T08:53:15Z |
| publishDate | 2023-12-01 |
| publisher | V.N. Karazin Kharkiv National University Publishing |
| record_format | Article |
| series | East European Journal of Physics |
| spelling | doaj.art-8ba3e9ae3f6c40d5a33e360616dd9ce22023-12-02T13:52:23ZengV.N. Karazin Kharkiv National University PublishingEast European Journal of Physics2312-43342312-45392023-12-01410.26565/2312-4334-2023-4-01FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) GravityVasudeo Patil0Jeevan Pawde1Rahul Mapari2Sachin Waghmare3Department of Mathematics, Arts, Science and Commerce College, Chikhaldara, Dist. Amravati (MS), IndiaDepartment of Mathematics, Arts, Science and Commerce College, Chikhaldara, Dist. Amravati (MS), IndiaDepartment of Mathematics, Government Science College, Gadchiroli (MS), IndiaDepartment of Mathematics, Tulshiram Gaikwad Patil College of Engg. & Technology, Nagpur(MS), India In this paper, we aim to describe the cosmic late-time acceleration of the Universe in f(R,Lm) gravity framework proposed by Harko (2010) with the help of an equation of state for strange quark matter. To achieve this, we adopt a specific form of f(R,Lm) gravity as f(R,Lm) =R/2}+ Lnm, where n is arbitrary constants. Here we utilize a hybrid scale factor to resolve the modified field equations in the context of f(R,Lm) gravity for an isotropic and homogeneous Friedmann–Lemaître–Robertson–Walker (FLRW) metric in presence of strange quark matter (SQM). Also, we analyze the dynamics of energy density, pressure and the state finder parameters and explained the distinctions between our model and the current dark energy models in the presence of SQM. We observed a transition from an accelerating to a decelerating phase in the Universe, followed by a return to an accelerating phase at late times. Also, we analyzed the state finder diagnostic as well equation of state parameter and found that the model exhibited quintessence-like behavior. The conclusion drawn from our investigation was that the proposed f(R, Lm) cosmological model aligns well with recent observational studies and effectively describes the cosmic acceleration observed during late times. https://periodicals.karazin.ua/eejp/article/view/22178FLRW Cosmological Modelf(R.Lm) gravityStrange Quark MatterHybrid Scale Factor |
| spellingShingle | Vasudeo Patil Jeevan Pawde Rahul Mapari Sachin Waghmare FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity East European Journal of Physics FLRW Cosmological Model f(R.Lm) gravity Strange Quark Matter Hybrid Scale Factor |
| title | FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity |
| title_full | FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity |
| title_fullStr | FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity |
| title_full_unstemmed | FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity |
| title_short | FLRW Cosmology with Hybrid Scale Factor in f(R, Lm) Gravity |
| title_sort | flrw cosmology with hybrid scale factor in f r lm gravity |
| topic | FLRW Cosmological Model f(R.Lm) gravity Strange Quark Matter Hybrid Scale Factor |
| url | https://periodicals.karazin.ua/eejp/article/view/22178 |
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