Fisher information, nonclassicality and quantum revivals
Quantum Physics
2014-09-22 v1
Abstract
Wave packet revivals and fractional revivals are studied by means of a measure of nonclassicality based on the Fisher information. In particular, we show that the spreading and the regeneration of initially Gaussian wave packets in a quantum bouncer and an in the infinite square-well correspond, respectively, to high and low nonclassicality values. This result is in accordance with the physical expectations that at a quantum revival wave packets almost recover their initial shape and the classical motion revives temporarily afterward.
Keywords
Cite
@article{arxiv.1409.5599,
title = {Fisher information, nonclassicality and quantum revivals},
author = {E. Romera and F. de los Santos},
journal= {arXiv preprint arXiv:1409.5599},
year = {2014}
}