Chinese Physics C > 2016, Vol. 40 > Issue(9): 095101 DOI: 10.1088/1674-1137/40/9/095101

Evolving Horava cosmological horizons

Mohsen Fathi^,,
Morteza Mohseni^,

1.
Department of Physics, Payame Noor University (PNU), P. O. Box 19395-3697 Tehran, I. R. of Iran

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Abstract：
Several sets of radially propagating null congruence generators are exploited in order to form 3-dimensional marginally trapped surfaces, referred to as black hole and cosmological apparent horizons in a Hořava universe. Based on this method, we deal with the characteristics of the 2-dimensional space-like spheres of symmetry and the peculiarities of having trapping horizons. Moreover, we apply this method in standard expanding and contracting FLRW cosmological models of a Hořava universe to investigate the conditions under which the extra parameters of the theory may lead to trapped/anti-trapped surfaces both in the future and in the past. We also include the cases of negative time, referred to as the finite past, and discuss the formation of anti-trapped surfaces inside the cosmological apparent horizons.
- Hořava universe,
- standard cosmology,
- null congruence expansion,
- black hole horizons,
- white holes

References

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Mohsen Fathi and Morteza Mohseni. Evolving Horava cosmological horizons[J]. Chinese Physics C, 2016, 40(9): 095101. doi: 10.1088/1674-1137/40/9/095101

Mohsen Fathi and Morteza Mohseni. Evolving Horava cosmological horizons[J]. Chinese Physics C, 2016, 40(9): 095101. doi:10.1088/1674-1137/40/9/095101 shu

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Received: 2016-06-02

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

Evolving Horava cosmological horizons

Mohsen Fathi^,
Morteza Mohseni^,

Corresponding author:Mohsen Fathi,

Corresponding author:Morteza Mohseni,

1. Department of Physics, Payame Noor University (PNU), P. O. Box 19395-3697 Tehran, I. R. of Iran

Received Date:2016-06-02
Available Online:2016-09-05

Abstract:Several sets of radially propagating null congruence generators are exploited in order to form 3-dimensional marginally trapped surfaces, referred to as black hole and cosmological apparent horizons in a Hořava universe. Based on this method, we deal with the characteristics of the 2-dimensional space-like spheres of symmetry and the peculiarities of having trapping horizons. Moreover, we apply this method in standard expanding and contracting FLRW cosmological models of a Hořava universe to investigate the conditions under which the extra parameters of the theory may lead to trapped/anti-trapped surfaces both in the future and in the past. We also include the cases of negative time, referred to as the finite past, and discuss the formation of anti-trapped surfaces inside the cosmological apparent horizons.