The authors obtain a static 5D Einstein-Gauss-Bonnet black hole solution surrounded by modified Chaplygin gas and analyze its thermodynamics, scalar tunneling, and perturbative stability.
Long-Wavelength Modes of Cosmological Scalar Fields
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abstract
We give a numerical analysis of long-wavelength modes in the WKB approximation of cosmological scalar fields coupled to gravity via $\xi\phi^{2}R$. Massless fields are coupled conformally at $\xi=1/6$. Conformality can be preserved for fields of nonzero mass by shifting $\xi$. We discuss implications for density perturbations.
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gr-qc 1years
2019 1verdicts
CONDITIONAL 1representative citing papers
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Black holes in Einstein-Gauss-Bonnet gravity with a background of modified Chaplygin gas
The authors obtain a static 5D Einstein-Gauss-Bonnet black hole solution surrounded by modified Chaplygin gas and analyze its thermodynamics, scalar tunneling, and perturbative stability.