Vortex splitting in the interference effect for a quantized vortex released from an optical lattice

For a quantized vortex in a harmonic trap and an optical lattice, we study the interference effect after the combined potentials are switched off. Both numerical and analytical calculations show that there is a vortex splitting in the interference effect of this freely expanding quantum gas, i.e. ev...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Physica. B, Condensed matter Condensed matter, 2011-09, Vol.406 (18), p.3425-3429
Hauptverfasser:	Liu, Shujuan, Zhu, Bihui, Xiong, Hongwei
Format:	Artikel
Sprache:	eng
Schlagworte:	Bose–Einstein condensation Classical and quantum physics: mechanics and fields Condensed matter Exact sciences and technology Fluid flow Harmonics Interference Mathematical analysis Matter waves Optical lattice Optical lattices Physics Splitting Vortex Vortices
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	For a quantized vortex in a harmonic trap and an optical lattice, we study the interference effect after the combined potentials are switched off. Both numerical and analytical calculations show that there is a vortex splitting in the interference effect of this freely expanding quantum gas, i.e. every interference peak is also a quantized vortex. The experimental scheme to verify this interference effect is discussed.
ISSN:	0921-4526 1873-2135
DOI:	10.1016/j.physb.2011.06.013