Khronon-Tensor theory reproducing MOND and the cosmological model
Luc Blanchet, Constantinos Skordis
TL;DR
This paper introduces a scalar-tensor theory using the Khronon field that reproduces MOND at galactic scales, aligns with general relativity in strong fields, and fits cosmological observations.
Contribution
It presents a novel Khronon-based scalar-tensor framework that unifies galactic and cosmological phenomena.
Findings
Reproduces MOND for stationary systems
Recovers GR with cosmological constant in strong fields
Matches standard cosmological model and CMB observations
Abstract
We propose an alternative scalar-tensor theory based on the Khronon scalar field labeling a family of space-like three-dimensional hypersurfaces. This theory leads to modified Newtonian dynamics (MOND) at galactic scales for stationary systems, recovers GR plus a cosmological constant in the strong field regime, and is in agreement with the standard cosmological model and the observed cosmic microwave background anisotropies.
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