%0 Journal Article
%T Quantum Backreaction on ``Classical'' Variables
%A Arlen Anderson
%J Physics
%D 1994
%I arXiv
%R 10.1103/PhysRevLett.74.621
%X A mathematically consistent procedure for coupling quasiclassical and quantum variables through coupled Hamilton-Heisenberg equations of motion is derived from a variational principle. During evolution, the quasiclassical variables become entangled with the quantum variables with the result that the value of the quasiclassical variables depends on the quantum state. This provides a formalism to compute the backreaction of any quantum system on a quasiclassical one. In particular, it leads to a natural candidate for a theory of gravity coupled to quantized matter in which the gravitational field is not quantized.
%U http://arxiv.org/abs/hep-th/9406182v2