Interacting dark energy models within the context of the particle creation framework: A dynamical systems study
In this paper, we employ the dynamical system method to probe the cosmological evolution in a matter creation model admitting interacting dark energy behavior. The set of dynamical variables in this framework allows one to trace the cosmic evolution in comparison to the Λ cold dark matter (ΛCDM) mod...
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| Language: | English |
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Elsevier
2025-08-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S221137972500244X |
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| author | Aman Shukla Ashutosh Singh Raghavendra Chaubey |
| author_facet | Aman Shukla Ashutosh Singh Raghavendra Chaubey |
| author_sort | Aman Shukla |
| collection | DOAJ |
| description | In this paper, we employ the dynamical system method to probe the cosmological evolution in a matter creation model admitting interacting dark energy behavior. The set of dynamical variables in this framework allows one to trace the cosmic evolution in comparison to the Λ cold dark matter (ΛCDM) model. The critical points in cosmological phase space are analyzed for their stability nature. The numerical integrations of the autonomous system are used to extract the evolution of cosmological quantities of the model, subjected to the initial condition compatible with observational data. The resulting cosmological behavior observed from the dynamical variables, cosmographic parameters and statefinder analysis illustrate the similarity as well as deviations from the ΛCDM model during different cosmic expansion phases. The autonomous systems are also used to study the classical stability of models under consideration. The interacting dark energy scenario in the matter creation mechanism leads to the universe evolution, which traces their journey from the decelerating phase (composed of radiation and matter phase) into accelerating phase dominated by a negative pressure component, which is directly consistent with observations. |
| format | Article |
| id | doaj-art-107777697fe84d1fb4c8591e3f7f37be |
| institution | DOAJ |
| issn | 2211-3797 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj-art-107777697fe84d1fb4c8591e3f7f37be2025-08-20T03:23:29ZengElsevierResults in Physics2211-37972025-08-017510835010.1016/j.rinp.2025.108350Interacting dark energy models within the context of the particle creation framework: A dynamical systems studyAman Shukla0Ashutosh Singh1Raghavendra Chaubey2Centre for Interdisciplinary Mathematical Sciences, Institute of Science, Banaras Hindu University, Varanasi, U.P., 221005, IndiaCentre for Cosmology, Astrophysics and Space Science, GLA University, Mathura, U.P, 281406, IndiaCentre for Interdisciplinary Mathematical Sciences, Institute of Science, Banaras Hindu University, Varanasi, U.P., 221005, India; Corresponding author.In this paper, we employ the dynamical system method to probe the cosmological evolution in a matter creation model admitting interacting dark energy behavior. The set of dynamical variables in this framework allows one to trace the cosmic evolution in comparison to the Λ cold dark matter (ΛCDM) model. The critical points in cosmological phase space are analyzed for their stability nature. The numerical integrations of the autonomous system are used to extract the evolution of cosmological quantities of the model, subjected to the initial condition compatible with observational data. The resulting cosmological behavior observed from the dynamical variables, cosmographic parameters and statefinder analysis illustrate the similarity as well as deviations from the ΛCDM model during different cosmic expansion phases. The autonomous systems are also used to study the classical stability of models under consideration. The interacting dark energy scenario in the matter creation mechanism leads to the universe evolution, which traces their journey from the decelerating phase (composed of radiation and matter phase) into accelerating phase dominated by a negative pressure component, which is directly consistent with observations.http://www.sciencedirect.com/science/article/pii/S221137972500244XFRWMatter creationInteracting dark energySpatial curvature |
| spellingShingle | Aman Shukla Ashutosh Singh Raghavendra Chaubey Interacting dark energy models within the context of the particle creation framework: A dynamical systems study Results in Physics FRW Matter creation Interacting dark energy Spatial curvature |
| title | Interacting dark energy models within the context of the particle creation framework: A dynamical systems study |
| title_full | Interacting dark energy models within the context of the particle creation framework: A dynamical systems study |
| title_fullStr | Interacting dark energy models within the context of the particle creation framework: A dynamical systems study |
| title_full_unstemmed | Interacting dark energy models within the context of the particle creation framework: A dynamical systems study |
| title_short | Interacting dark energy models within the context of the particle creation framework: A dynamical systems study |
| title_sort | interacting dark energy models within the context of the particle creation framework a dynamical systems study |
| topic | FRW Matter creation Interacting dark energy Spatial curvature |
| url | http://www.sciencedirect.com/science/article/pii/S221137972500244X |
| work_keys_str_mv | AT amanshukla interactingdarkenergymodelswithinthecontextoftheparticlecreationframeworkadynamicalsystemsstudy AT ashutoshsingh interactingdarkenergymodelswithinthecontextoftheparticlecreationframeworkadynamicalsystemsstudy AT raghavendrachaubey interactingdarkenergymodelswithinthecontextoftheparticlecreationframeworkadynamicalsystemsstudy |