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A Proposal for Guiding and Trapping of Cold Atoms in the AC Field of Current‐Carrying Wires
Author(s) -
Xu Lifang,
Yin Jianping,
Wang Yuzhu
Publication year - 2001
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200100084
Subject(s) - chemistry , trapping , quadrupole , dipole , magnetic field , atomic physics , magnetic dipole , atom (system on chip) , magnetic moment , current (fluid) , quadrupole magnet , ultracold atom , field (mathematics) , trap (plumbing) , moment (physics) , condensed matter physics , physics , classical mechanics , quantum mechanics , ecology , mathematics , organic chemistry , meteorology , computer science , pure mathematics , quantum , biology , embedded system , thermodynamics
We propose a novel ac electro‐magnetic guiding and trapping of cold neutral atoms, which is based on the interaction of a magnetic dipole moment of guided and trapped atom with both an ac quadrupole magnetic field in the trans verse direction and a dc‐bias magnetic field along the guiding axis. The time‐averaged magnetic potential and force for the atoms are calculated. And the results show that the potential is high enough to collect and guide nearly all of the cold atoms from a standard magneto‐optical trap with a temperature of ∼ 120 μK.