Higher order terms for the quantum evolution of a Wick observable within the Hepp method
Author
Breteaux, Sébastien
Full text
https://revistas.ufro.cl/ojs/index.php/cubo/article/view/134410.4067/S0719-06462012000200006
Abstract
The Hepp method is the coherent state approach to the mean field dynamics for bosons or to the semiclassical propagation. A key point is the asymptotic evolution of Wick observables under the evolution given by a time-dependent quadratic Hamiltonian. This article provides a complete expansion with respect to the small parameter ε > 0 which makes sense within the infinite-dimensional setting and fits with finite-dimensional formulae.