arXiv:1105.5096 · Physical Review A
Publisher’s Note: System of classical nonlinear oscillators as a coarse-grained quantum system [Phys. Rev. A84, 022103 (2011)]
Milan Radonjić, Slobodan Prvanović, Nikola Burić
Abstract
Constrained Hamiltonian dynamics of a quantum system of nonlinear oscillators is used to provide the mathematical formulation of a coarse-grained description of the quantum system. It is seen that the evolution of the coarse-grained system preserves constant and minimal quantum fluctuations of the fundamental observables. This leads to the emergence of the corresponding classical system on a sufficiently large scale.