The loss of quantum coherence induced by a Gaussian random potential

We investigate the source of decoherence from a random external potential by the Feynman path integral method. We find that the off-diagonal elements of the density matrix decay with two characteristic time scales, which are separated by the correlation length. The heavy and light mass cases are dem...

Ausführliche Beschreibung

Bibliographische Detailangaben

Veröffentlicht in:	Physics letters. A 2012-04, Vol.376 (19), p.1589-1592
Hauptverfasser:	Boonpan, S., Panacharoensawad, B., Boonchui, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Coherence Correlation Decay Decoherence Density Feynman path integral method Gaussian Gaussian random potential Integrals Solid state physics
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!