Non-singular solutions to Einstein-Klein-Gordon equations with a phantom scalar field

Details Non-singular solutions to Einstein-Klein-Gordon equations with a phantom scalar field Non-singular solutions to Einstein-Klein-Gordon equations with a phantom scalar field

2008-05-21

arxiv.org/abs/0805.3211v3

JHEP 0807:094,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

final version

Scientific paper

10.1088/1126-6708/2008/07/094

It is shown that the 4D Einstein-Klein-Gordon equations with a phantom scalar field (a scalar field with a negative sign in front of the kinetic energy term of its Lagrange density) has non-singular, spherically symmetry solutions. These solutions have a combination of features found in other spherically symmetric gravity plus field solutions. A stability analysis on these solutions indicates they are unstable.

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