The noise spectrum an interferometer would see from quantum spacetime jitter is computed for vacuum, thermal, squeezed, and scalar-backreaction states; all are Planck-suppressed.
Emergent Gravity requires (kinematic) non-locality
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abstract
This work refines arguments forbidding non-linear dynamical gravity from appearing in the low energy effective description of field theories with local kinematics, even for those with instantaneous long-range interactions. Specifically, we note that gravitational theories with universal coupling to energy -- an intrinsically non-linear phenomenon -- are characterized by Hamiltonians that are pure boundary terms on shell. In order for this to be the low energy effective description of a field theory with local kinematics, all bulk dynamics must be frozen and thus irrelevant to the construction. The result applies to theories defined either on a lattice or in the continuum, and requires neither Lorentz-invariance nor translation-invariance.
years
2026 2representative citing papers
The Harmonic Background Paradigm is conjectured to extend to nonlinear gravity via a screening mechanism in which negative-energy gravitational clouds surround but never overcome positive-energy seeds, connected through a causal cone hierarchy.
citing papers explorer
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Geometric noise spectrum in interferometers
The noise spectrum an interferometer would see from quantum spacetime jitter is computed for vacuum, thermal, squeezed, and scalar-backreaction states; all are Planck-suppressed.
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Cone hierarchy and the screening of matter by gravity
The Harmonic Background Paradigm is conjectured to extend to nonlinear gravity via a screening mechanism in which negative-energy gravitational clouds surround but never overcome positive-energy seeds, connected through a causal cone hierarchy.