UV-Suppressed Matter Sector Corrections to Gravitational Dynamics from a Scalar Spectral Field: EFT Structure, Gravitational Waves, and Information-Theoretic Constraints

Key Points

• This research aims to develop an effective field theory that incorporates ultraviolet-suppressed corrections to gravitational dynamics.
• Constructed a ghost-free effective field theory involving a scalar spectral field S.
• Analyzed the effects on gravitational-wave propagation and black hole quasinormal spectra.
• Ensured consistency with diffeomorphism invariance while preserving a massless spin-2 graviton.
• Established that the theory does not alter the infrared Einstein-Hilbert structure.
• Identified new corrections that impact gravitational-wave propagation and black hole quasinormal spectra effectively.
• Demonstrated consistency with theoretical frameworks while remaining ghost-free.