Pumping vortex into a Bose-Einstein condensate of heteronuclear molecules

Details Pumping vortex into a Bose-Einstein condensate of heteronuclear molecules Pumping vortex into a Bose-Einstein condensate of heteronuclear molecules

2009-02-09

arxiv.org/abs/0902.1353v1

New J. Phys. 11, 055019 (2009)

Physics

Condensed Matter

Other Condensed Matter

10 pages, 2 figures

Scientific paper

10.1088/1367-2630/11/5/055019

Heteronuclear molecules attract wide attention due to their permanent electric dipole moments. Analogous to atoms with magnetic dipoles, the existence of nonzero electric dipoles significantly enhance possibilities and mechanisms for control and design of quantum degenerate molecule systems with electric (E-) fields. This work proposes a vortex creation mechanism inside a condensate of heteronuclear molecules through the adiabatic flipping of the axial bias of an analogous E-field Ioffe-Pritchard trap (IPT), extending the original protocol due to Ishoshima, {\it et al.}, [Phys. Rev. A \textbf{61}, 063610 (2000)] for an atomic spinor condensate inside a magnetic (B-) field IPT. We provide both analytic proof and numerical simulations to illustrate the high fidelity operation of this vortex pump protocol. We hope our work provides stimulating experimental possibilities for the active investigations in quantum degenerate molecule systems.

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