Negative Masses, Even If Isolated, Imply Self-Acceleration, Hence a Catastrophic World.

Negative masses, even if isolated, imply self-acceleration, hence a catastrophic world. Abstract The conjecture of the existence of negative masses together with ordinary positive masses leads to runaway motions even if no self-reaction is considered. Pollard and Dunning-Davies have shown other constraints as a modiication of the principle of least action and that negative masses can only exist at negative temperatures, and must be adiabatically separate from positive masses. We show here that the self-reaction on a single isolated negative mass implies a runaway motion. Consequently, the consideration of self-elds and relevant self-reaction excludes negative masses even if isolated.