Vol. 6 (01) pp. 654-661 DOI: 10.21474/IJAR01/6270

VORTEX DIPOLE EXCITATIONS IN TRAPPED BOSE-EINSTEIN CONDENSATE.

  • Department of information engineering, nanjing normal university taizhou college, taizhou 225300, china.
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Abstract

We numerically study dynamical creation of vortex excitations in Bose-Einstein condensates (BECs) within the framework of mean-field theory using dissipative Gross-pitaevskii equation. Vortex dipoles and soliton pairs are found to be created after two Gaussian obstacle potentials collide head on. Furthermore, we examine the mechanism of vortex excitation in a highly oblate spin-orbit coupling BEC. It is found that the symmetry of vortex dipoles is destroyed and the structure is quite different from that without spin-orbit coupling. The critical velocity for vortex-antivortex pair nucleation is heavily influenced by the strength of spin-orbit coupling.

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How to Cite This Article

Qingli Zhu. (2018); VORTEX DIPOLE EXCITATIONS IN TRAPPED BOSE-EINSTEIN CONDENSATE., International Journal of Advanced Research (IJAR), 6 (01), 654-661, ISSN 2320-5407. DOI: https://doi.org/10.21474/IJAR01/6270

Corresponding Author

Qingli Zhu
Department of information engineering, Nanjing Normal University Taizhou college, Taizhou 225300, China

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