Lookup NU author(s): Dr Tom Bland,
Dr Nicholas Parker
This is the authors' accepted manuscript of a letter that has been published in its final definitive form by American Physical Society, 2019.
For re-use rights please refer to the publisher's terms and conditions.
The possibility of effectively inverting the sign of the dipole-dipole interaction, by fast rotation of the dipole polarization, is examined within a harmonically trapped dipolar Bose-Einstein condensate. Our analysis is based on the stationary states in the Thomas-Fermi limit, in the corotating frame, as well as direct numerical simulations in the Thomas-Fermi regime, explicitly accounting for the rotating polarization. The condensate is found to be inherently unstable due to the dynamical instability of collective modes. This ultimately prevents the realization of robust and long-lived rotationally tuned states. Our findings have major implications for experimentally accessing this regime.
Author(s): Prasad SB, Bland T, Mulkerin BC, Parker NG, Martin AM
Publication type: Letter
Publication status: Published
Journal: Physical Review Letters
Print publication date: 06/02/2019
Online publication date: 06/02/2019
Acceptance date: 24/01/2019
ISSN (print): 0031-9007
ISSN (electronic): 1079-7114
Publisher: American Physical Society