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Title: Stabilization of ring dark solitons in Bose-Einstein condensates

Journal Article · · Physical Review A - Atomic, Molecular, and Optical Physics
 [1];  [2];  [3];  [4];  [5];  [6]
  1. Univ. of Massachusetts, Amherst, MA (United States)
  2. Univ. of Massachusetts, Amherst, MA (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. San Diego State Univ., San Diego, CA (United States)
  4. Univ. of Athens, Athens (Greece)
  5. Boston Univ., Boston, MA (United States)
  6. Zhejiang Sci-Tech Univ., Zhejiang (China)

Earlier work has shown that ring dark solitons in two-dimensional Bose-Einstein condensates are generically unstable. In this work, we propose a way of stabilizing the ring dark soliton via a radial Gaussian external potential. We investigate the existence and stability of the ring dark soliton upon variations of the chemical potential and also of the strength of the radial potential. Numerical results show that the ring dark soliton can be stabilized in a suitable interval of external potential strengths and chemical potentials. Furthermore, we also explore different proposed particle pictures considering the ring as a moving particle and find, where appropriate, results in very good qualitative and also reasonable quantitative agreement with the numerical findings.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
DMR1208046; DMS1312856; DMS1109587; DMS1309035; FA9550-12-1-0332; 11271342; AC52-06NA25396
OSTI ID:
1234714
Alternate ID(s):
OSTI ID: 1215746
Report Number(s):
LA-UR-15-23918; PLRAAN; TRN: US1600432
Journal Information:
Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 92, Issue 3; ISSN 1050-2947
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

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