2021/04/19 by Younghoon Lim, Junhong Goo, Haneul Kwak +1
Chemistry · Computer Science · Mathematics · Physics and Astronomy · #Atomic physics #Beam (structure) #Center (category theory) #Chemistry #Cold Atom Physics and Bose-Einstein Condensates #Crystallography #Gaussian beam #Mathematics #Oblate spheroid #Optics #Orbital Angular Momentum in Optics #Physics #Quantum Information and Cryptography #Quartic function #Trapping #cond-mat.quant-gas
paper · pdf · doi:10.1103/physreva.103.063319
published as Phys. Rev. A 103, 063319 (2021) · 6 pages, 6 figures
arxiv created 2021/04/19 · openalex created_date 2021/04/26 · openalex publication_date 2021/06/23 · arxiv updated 2021/06/30 · openalex updated_date 2026/08/05
We demonstrate a production of large-area 87Rb 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 87Rb is generated with a length and width of approximately 470 and 130\phantom\rule0.28em0ex\ensuremathμm, respectively, where the condensate healing length is estimated to be \ensuremathξ\ensuremath≈0.25\phantom\rule0.28em0ex\ensuremathμm 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 1000\ensuremathξ in the central region. Finally, we discuss the prospect of conducting vortex shedding experiments using the elongated condensate.