Scalar field collapse in Gauss–Bonnet gravity

被引：0
作者：
Narayan Banerjee
Tanmoy Paul
机构：
[1] Indian Institute of Science Education and Research Kolkata,Department of Physical Sciences
[2] Indian Association for the Cultivation of Science,Department of Theoretical Physics
来源：
The European Physical Journal C | 2018年 / 78卷
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摘要：
We consider a “scalar-Einstein–Gauss–Bonnet” theory in four dimension, where the scalar field couples non-minimally with the Gauss–Bonnet (GB) term. This coupling with the scalar field ensures the non-topological character of the GB term. In this scenario, we examine the possibility for collapsing of the scalar field. Our result reveals that such a collapse is possible in the presence of Gauss–Bonnet gravity for suitable choices of parametric regions. The singularity formed as a result of the collapse is found to be a curvature singularity which is hidden from the exterior by an apparent horizon.
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