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Title: Generating and manipulating quantized vortices on-demand in a Bose-Einstein condensate: A numerical study

Abstract

Here, we numerically investigate an experimentally viable method for generating and manipulating on-demand several vortices in a highly oblate atomic Bose-Einstein condensate (BEC) in order to initialize complex vortex distributions for studies of vortex dynamics. The method utilizes moving laser beams to generate, capture, and transport vortices inside and outside the BEC. This methodology is examined in detail and shows a wide parameter range of applicability for the prototypical two-vortex case, as well as case examples of producing and manipulating several vortices for which there is no net circulation, corresponding to equal numbers of positive and negative circulation vortices, and cases for which there is one net quantum of circulation. We also find that the presence of dissipation can help stabilize the pinning of the vortices on their respective laser beam pinning sites. Finally, we illustrate how to utilize laser beams as repositories that hold large numbers of vortices and how to deposit individual vortices in a sequential fashion in the repositories in order to construct superfluid flows about the repository beams with several quanta of circulation.

Authors:
 [1];  [2];  [3];  [4]
  1. Univ. of Massachusetts, Amherst, MA (United States); Univ. of Oldenburg (Germany)
  2. Univ. of Massachusetts, Amherst, MA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. San Diego State Univ., CA (United States)
  4. Univ. of Arizona, Tucson, AZ (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1258158
Report Number(s):
LA-UR-15-26191
Journal ID: ISSN 2469-9926; PLRAAN
Grant/Contract Number:  
605096; DMS-1312856; PHY-1205713; 2010239; INST 184/108-1 FUGG; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 93; Journal Issue: 2; Journal ID: ISSN 2469-9926
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; 97 MATHEMATICS AND COMPUTING

Citation Formats

Gertjerenken, B., Kevrekidis, P. G., Carretero-González, R., and Anderson, B. P. Generating and manipulating quantized vortices on-demand in a Bose-Einstein condensate: A numerical study. United States: N. p., 2016. Web. doi:10.1103/PhysRevA.93.023604.
Gertjerenken, B., Kevrekidis, P. G., Carretero-González, R., & Anderson, B. P. Generating and manipulating quantized vortices on-demand in a Bose-Einstein condensate: A numerical study. United States. https://doi.org/10.1103/PhysRevA.93.023604
Gertjerenken, B., Kevrekidis, P. G., Carretero-González, R., and Anderson, B. P. Mon . "Generating and manipulating quantized vortices on-demand in a Bose-Einstein condensate: A numerical study". United States. https://doi.org/10.1103/PhysRevA.93.023604. https://www.osti.gov/servlets/purl/1258158.
@article{osti_1258158,
title = {Generating and manipulating quantized vortices on-demand in a Bose-Einstein condensate: A numerical study},
author = {Gertjerenken, B. and Kevrekidis, P. G. and Carretero-González, R. and Anderson, B. P.},
abstractNote = {Here, we numerically investigate an experimentally viable method for generating and manipulating on-demand several vortices in a highly oblate atomic Bose-Einstein condensate (BEC) in order to initialize complex vortex distributions for studies of vortex dynamics. The method utilizes moving laser beams to generate, capture, and transport vortices inside and outside the BEC. This methodology is examined in detail and shows a wide parameter range of applicability for the prototypical two-vortex case, as well as case examples of producing and manipulating several vortices for which there is no net circulation, corresponding to equal numbers of positive and negative circulation vortices, and cases for which there is one net quantum of circulation. We also find that the presence of dissipation can help stabilize the pinning of the vortices on their respective laser beam pinning sites. Finally, we illustrate how to utilize laser beams as repositories that hold large numbers of vortices and how to deposit individual vortices in a sequential fashion in the repositories in order to construct superfluid flows about the repository beams with several quanta of circulation.},
doi = {10.1103/PhysRevA.93.023604},
journal = {Physical Review A},
number = 2,
volume = 93,
place = {United States},
year = {2016},
month = {2}
}

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Works referencing / citing this record:

Oblique collisions and catching-up phenomena of vortex dipoles in a uniform Bose–Einstein condensate
journal, April 2019


Deterministic creation, pinning, and manipulation of quantized vortices in a Bose-Einstein condensate
journal, February 2016


Many-body dissipative flow of a confined scalar Bose-Einstein condensate driven by a Gaussian impurity
journal, July 2018