Abstract
Generic relevant deformations of Einstein’s gravity theory contain additional degrees of freedom that have a multifaceted stabilization dynamics on curved spacetimes. We show that these relevant degrees of freedom are self-protected against unitarity violations by the formation of classical field lumps that eventually merge to a new background geometry. The transition is heralded by the massive decay of the original vacuum and evolves through a strong coupling regime. This process fits in the recently proposed classicalization mechanism and extends it further to free field dynamics on curved backgrounds.
- Received 7 March 2011
DOI:https://doi.org/10.1103/PhysRevLett.106.191102
© 2011 American Physical Society