PT - JOURNAL ARTICLE
AU -
TI - Quantum spacetime fluctuations and primary state diffusion
DP - 1995 Nov 08
TA - Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences
PG - 503--513
VI - 451
IP - 1942
4099 - http://rspa.royalsocietypublishing.org/content/451/1942/503.short
4100 - http://rspa.royalsocietypublishing.org/content/451/1942/503.full
AB - Non-differentiable fluctuations in spacetime on a Planck scale introduce stochastic terms into the equations for quantum states, resulting in a proposed new foundation for an existing alternative quantum theory: primary state diffusion (PSD). Planck-scale stochastic spacetime structure results in quantum fluctuations, whilst larger-scale curvature is responsible for gravitational forces. The gravitational field and the quantum fluctuation field are the same, differing only in scale. The quantum mechanics of small systems, classical mechanics of large systems and the physics of quantum experiments are all derived dynamically, without any prior division into classical and quantum domains, and without any measurement hypothesis. Unlike the earlier derivation of PSD, the new derivation, based on a stochastic spacetime differential geometry, has essentially no free parameters. However, many features of this structure remain to be determined. The theory is falsifiable in the laboratory, and critical matter interferometry experiments, to distinguish it from ordinary quantum mechanics, might be feasible within the next decade.