Marginal behavior of the quantum potential in Extended Phase Space

Document Type : Regular Paper


1 Department of Physics, Zanjan University, P. O. Box 45196-313, Zanjan, Iran

2 Institute for Advanced Studies in Basic Sciences, IASBS, P. O. Box 49195, Zanjan, Iran


Here, the concept of quantum potential that has been illustrated in Extended Phase Space (EPS) in previous works is explored for its marginal behavior. Unlike in configuration space, different representations of the quantum mechanics can be found in EPS when exploiting appropriate canonical transformations. These canonical transformations revealed that there exist several representations in which the quantum potential could be removed not only for a particle in constant, linear and quadratic potentials, but also for a free particle. In these representations one still has the form-invariance of the ordinary Hamilton-Jacobi equation. The present work is an attempt to show that the Squeezed Wigner representation is a possible representation in which, for large values of squeezing parameter, the quantum potential disappears from the dynamical equation for a particle in the general potential