9 papers analyzed
These studies suggest that theoretical models of dark energy and the expanding universe include the cosmological constant, modified matter and gravity models, inhomogeneous models, and phenomenological approaches, all contributing to the explanation of the universe's accelerated expansion.
Theoretical models of dark energy and the expanding universe aim to explain the observed accelerated expansion of the universe. This phenomenon, confirmed by various observational data, suggests that a significant portion of the universe's energy density is composed of dark energy. Researchers have proposed multiple models to account for this, including the cosmological constant, modified matter models, modified gravity models, and inhomogeneous models.
Cosmological Constant and Its Problems
Modified Matter Models
Modified Gravity Models
Inhomogeneous Models
Observational Constraints and Model Testing
Model Independent Approaches
Theoretical models of dark energy and the expanding universe encompass a range of approaches, from the cosmological constant to modified gravity and inhomogeneous models. Each model offers unique solutions and faces distinct challenges, with observational data playing a crucial role in testing and constraining these theories. While no single model has emerged as definitively superior, the ongoing accumulation of observational data continues to refine our understanding of dark energy and the universe's accelerated expansion.
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