Abstract
We study exact tunneling solutions in scalar field theory for potential barriers composed of linear or quadratic patches. We analytically continue our solutions to imaginary Euclidean radius in order to study the profile of the scalar field inside the growing bubble. We find that generally there is a non-trivial profile of the scalar field, generating a stress-energy tensor, that depending on the form of the potential, can be a candidate for dark energy.
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ArXiv ePrint: 1102.4567
When this work was completed, the affiliation of the author was SB ITP LPPC, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
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Pastras, G. Exact tunneling solutions in Minkowski spacetime and a candidate for dark energy. J. High Energ. Phys. 2013, 75 (2013). https://doi.org/10.1007/JHEP08(2013)075
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DOI: https://doi.org/10.1007/JHEP08(2013)075