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October 13, 20250 citationsOpen Access

A Dark Matter Model with a Quadratic Equation of State for Structure Formation

A Dark Matter Model with Quadratic Equation of State: Background Evolution and Structure Formation

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Authors

KRKazem RezazadehEYE. YusofiATAlireza Talebian

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Overview

This model demonstrates altered evolution through a quadratic equation of state in dark matter, indicating significant impacts on structure formation.

Key Points

  • The dark matter model with a quadratic equation of state impacts the Universe's early evolution and structure formation.
  • The modified equations derived include the Hubble parameter and density parameter, leading to altered growth of matter fluctuations.
  • This model is consistent with background observations while providing unique insights into the growth of structure.
  • Comprehensive comparisons with cosmological data up to redshift z=3 reveal new insights into dark matter characteristics.

Cite This Study

Rezazadeh et al. (2025) studied this question.

synapsesocial.com/papers/68ecfebf950606aabec09386https://doi.org/10.48550/arxiv.2509.11138
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