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  Scalar lumps with a horizon

Lavrelashvili, G. V., Lehners, J.-L., & Schneider, M. (2021). Scalar lumps with a horizon. Physical Review D, 104: 044007. doi:10.1103/PhysRevD.104.044007.

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2104.13403.pdf (Preprint), 9KB
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 Creators:
Lavrelashvili, George V.1, Author              
Lehners, Jean-Luc2, Author              
Schneider, Marc2, Author              
Affiliations:
1Quantum Gravity and Unified Theories, AEI Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              
2Theoretical Cosmology, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_1753351              

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Free keywords: High Energy Physics - Theory, hep-th,General Relativity and Quantum Cosmology, gr-qc
 Abstract: We study a self-interacting scalar field theory coupled to gravity and are interested in spherically symmetric solutions with a regular origin surrounded by a horizon. For a scalar potential containing a barrier, and using the most general spherically symmetric ansatz, we show that in addition to the known static, oscillating solutions discussed earlier in the literature there exist new classes of solutions which appear in the strong field case. For these solutions the spatial sphere shrinks either beyond the horizon, implying a collapsing universe outside of the cosmological horizon, or it shrinks already inside of the horizon, implying the existence of a black hole surrounding the scalar lump in all directions. Crucial for the existence of all such solutions is the presence of a scalar field potential with a barrier that satisfies the swampland conjectures.

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 Dates: 2021-04-272021-08-042021
 Publication Status: Published in print
 Pages: 21 pages, 10 figures, v2: replaced with published version
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 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 2104.13403
DOI: 10.1103/PhysRevD.104.044007
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 104 Sequence Number: 044007 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: https://pure.mpg.de/cone/journals/resource/111088197762258