Holographic dark energy and cosmic coincidence

By D. Pavón, Winfried Zimdahl. 2005

600 citations recorded by the source corpus.

In this Letter we demonstrate that any interaction of pressureless dark matter with holographic dark energy, whose infrared cutoff is set by the Hubble scale, implies a constant ratio of the energy densities of both components thus solving the coincidence problem. The equation of state parameter is obtained as a function of the interaction strength. For a variable degree of saturation of the holographic bound the energy density ratio becomes time dependent which is compatible with a transition from decelerated to accelerated expansion.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/4265d025d579e6e4b104c2f055e0e63cff95ae47

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In Astronomy and Astrophysics

1. Hongya Liu
2. Jing-Fei Zhang
3. E. di Valentino
4. J. V. Cunha
5. Supriya Pan
6. Xin Zhang
7. Weiqiang Yang
8. J. A. S. Lima

In Nuclear and High Energy Physics

1. Hongya Liu
2. Jing-Fei Zhang
3. Supriya Pan
4. Xin Zhang
5. Weiqiang Yang
6. E. di Valentino
7. A. Mukherjee
8. J. A. S. Lima

Citations in the corpus

• Interacting dark energy with time varying equation of state and the H0 tension (2018, background): “The theoretical compulsions to invoke the possibility of interaction between dark energy and dark matter are the extremely small value of the cosmological constant [14] and the well known cosmic coincidence problem [15, 16, 17, 18, 19].”