skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates

Abstract

A quantized vortex dipole is the simplest vortex molecule, comprising two countercirculating vortex lines in a superfluid. Although vortex dipoles are endemic in two-dimensional superfluids, the precise details of their dynamics have remained largely unexplored. We present here several striking observations of vortex dipoles in dilute-gas Bose-Einstein condensates, and develop a vortex-particle model that generates vortex line trajectories that are in good agreement with the experimental data. Interestingly, these diverse trajectories exhibit essentially identical quasiperiodic behavior, in which the vortex lines undergo stable epicyclic orbits.

Authors:
;  [1];  [2];  [3];  [4];  [5]; ;  [6]
  1. Zentrum fuer Optische Quantentechnologien, Universitaet Hamburg, Luruper Chaussee 149, DE-22761 Hamburg (Germany)
  2. Departamento de Matematica Aplicada, Universidad de Granada, ES-18071 Granada (Spain)
  3. Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts 01003-4515 (United States)
  4. Department of Physics, University of Athens, Panepistimiopolis, Zografos, Athens 157 84 (Greece)
  5. Nonlinear Dynamical System Group, Computational Science Research Center and Department of Mathematics and Statistics, San Diego State University, San Diego, California 92182-7720 (United States)
  6. Department of Physics, Amherst College, Amherst, Massachusetts 01002-5000 (United States)
Publication Date:
OSTI Identifier:
22038570
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 1; Other Information: (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; BOSE-EINSTEIN CONDENSATION; MOLECULES; PARTICLE MODELS; SUPERFLUIDITY; VORTICES

Citation Formats

Middelkamp, S., Schmelcher, P., Torres, P. J., Kevrekidis, P. G., Frantzeskakis, D. J., Carretero-Gonzalez, R., Freilich, D. V., and Hall, D. S. Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.011605.
Middelkamp, S., Schmelcher, P., Torres, P. J., Kevrekidis, P. G., Frantzeskakis, D. J., Carretero-Gonzalez, R., Freilich, D. V., & Hall, D. S. Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates. United States. doi:10.1103/PHYSREVA.84.011605.
Middelkamp, S., Schmelcher, P., Torres, P. J., Kevrekidis, P. G., Frantzeskakis, D. J., Carretero-Gonzalez, R., Freilich, D. V., and Hall, D. S. Fri . "Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates". United States. doi:10.1103/PHYSREVA.84.011605.
@article{osti_22038570,
title = {Guiding-center dynamics of vortex dipoles in Bose-Einstein condensates},
author = {Middelkamp, S. and Schmelcher, P. and Torres, P. J. and Kevrekidis, P. G. and Frantzeskakis, D. J. and Carretero-Gonzalez, R. and Freilich, D. V. and Hall, D. S.},
abstractNote = {A quantized vortex dipole is the simplest vortex molecule, comprising two countercirculating vortex lines in a superfluid. Although vortex dipoles are endemic in two-dimensional superfluids, the precise details of their dynamics have remained largely unexplored. We present here several striking observations of vortex dipoles in dilute-gas Bose-Einstein condensates, and develop a vortex-particle model that generates vortex line trajectories that are in good agreement with the experimental data. Interestingly, these diverse trajectories exhibit essentially identical quasiperiodic behavior, in which the vortex lines undergo stable epicyclic orbits.},
doi = {10.1103/PHYSREVA.84.011605},
journal = {Physical Review. A},
issn = {1050-2947},
number = 1,
volume = 84,
place = {United States},
year = {2011},
month = {7}
}