Stable wormholes in scalar-tensor theories
Journal Article
·
· Journal of High Energy Physics (Online)
- Center for Astroparticle Physics, Geneva (Switzerland); DOE/OSTI
- Columbia Univ., New York, NY (United States)
- Carnegie Mellon Univ., Pittsburgh, PA (United States)
- Istituto Nazionale di Fisica Nucleare (INFN), Pisa (Italy); Scuola Normale Superiore (SNS), Pisa (Italy)
We reconsider the issue of whether scalar-tensor theories can admit stable wormhole configurations supported by a non-trivial radial profile for the scalar field. Using a recently proposed effective theory for perturbations around static, spherically symmetric backgrounds, we show that scalar-tensor theories of “beyond Horndeski” type can have wormhole solutions that are free of ghost and gradient instabilities. Such solutions are instead forbidden within the more restrictive “Horndeski” class of theories.
- Research Organization:
- Columbia Univ., New York, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0011941
- OSTI ID:
- 1611712
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Journal Issue: 1 Vol. 2019; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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