Two objects in a shared Bath field. The cyan sphere (Q=0.05) and orange rod (Q=1.0) experience continuous weak measurement of their quadrupole moments. Watch as the measurement-feedback loop creates emergent gravitational attraction.
This simulation implements the Bath-TT measurement-feedback framework where gravity emerges as compensating back-action.
The environment continuously and weakly measures the transverse-traceless components of stress-energy — shape/quadrupole degrees of freedom, not mass or position.
Tracing out the Bath yields irreversible dynamics. Superpositions of different shapes decohere faster than identical shapes at different positions.
Measurement alone causes heating. To stabilize, the Bath applies deterministic back-action driven by the measurement record. This IS gravity.
Press G to toggle geometry. Move objects with WASD and watch the distance decrease.