GUP, Spin-2 Fields, and Lee-Wick Ghosts
Analysis
This paper explores the connections between the Generalized Uncertainty Principle (GUP), higher-derivative spin-2 theories (like Stelle gravity), and Lee-Wick quantization. It suggests a unified framework where the higher-derivative ghost is rendered non-propagating, and the nonlinear massive completion remains intact. This is significant because it addresses the issue of ghosts in modified gravity theories and potentially offers a way to reconcile these theories with observations.
Key Takeaways
- •Connects GUP, higher-derivative gravity, and Lee-Wick quantization.
- •Proposes a framework where the spin-2 ghost is non-propagating.
- •Maintains the nonlinear massive completion of gravity theories.
Reference
“The GUP corrections reduce to total derivatives, preserving the absence of the Boulware-Deser ghost.”