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Large-area Rb 87 Bose-Einstein condensate in a clipped-Gaussian optical dipole trap

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Title
Large-area Rb 87 Bose-Einstein condensate in a clipped-Gaussian optical dipole trap
Author(s)
Younghoon Lim; Goo, Junhong; Kwak, Haneul; Y. Shin
Publication Date
2021-06
Journal
Physical Review A, v.103, no.6
Publisher
American Physical Society
Abstract
© 2021 American Physical Society.We demonstrate a production of large-area Rb87 Bose-Einstein condensates (BECs) using a non-Gaussian optical dipole trap (ODT). The ODT is formed by focusing a symmetrically truncated Gaussian laser beam, and it is shown that the beam clipping causes the trap geometry to be elongated and flattened along the beam axis direction. In the clipped-Gaussian ODT, an elongated, highly oblate BEC of Rb87 is generated with a length and width of approximately 470 and 130μm, respectively, where the condensate healing length is estimated to be ζ≈0.25μm at the trap center. The ODT is characterized to have a quartic trapping potential along the beam axis and the atom density of the condensate is uniform within 10% over 1000ζ in the central region. Finally, we discuss the prospect of conducting vortex shedding experiments using the elongated condensate.
URI
https://pr.ibs.re.kr/handle/8788114/10089
DOI
10.1103/PhysRevA.103.063319
ISSN
2469-9926
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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