Internal Decoherence of a Gaussian Wave Packet in a Harmonic Potential

We have studied the quantum dissipative problem of a Gaussian wave packet under the influence of a harmonic potential. A phenomenological approach to dissipation is adopted in the light of the well-known model in which the environment is composed of a bath of non-interacting harmonic oscillators. As...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2014-07
Main Authors: Cidrim, A, F E A dos Santos, Caldeira, A O
Format: Article
Language:English
Subjects:
Atmospheric pressure
Damping
Harmonic oscillators
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have studied the quantum dissipative problem of a Gaussian wave packet under the influence of a harmonic potential. A phenomenological approach to dissipation is adopted in the light of the well-known model in which the environment is composed of a bath of non-interacting harmonic oscillators. As one of the effects of the coupling to the bath is the evolution of an initially pure wave packet into a statistical mixture, we estimate the characteristic time elapsed for this to occur for different regimes of temperature, damping, and also different initial states.
ISSN:2331-8422
DOI:10.48550/arxiv.1407.4204