Phys. Rev. A 63, 025601 (2001) [4 pages]Complex scaling calculation of the decaying quantum-propagation modes of neutral atoms in a magnetic guideReceived 30 August 2000; published 3 January 2001 It is shown that the energies and the lifetimes of unstable modes of quantum propagation of neutral atoms in a quadrupole magnetic guide can be calculated simply by diagonalizing the complex scaled Hamiltonian. The results reproduce those obtained for the same geometry, but by a different method, by E. A. Hinds and C. Eberlein [Phys. Rev. A 61, 033614 (2000)]. The destabilizing effect of a weak bias magnetic field on the l=0 propagation mode of s=1/2 atoms is illustrated. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.63.025601
DOI:
10.1103/PhysRevA.63.025601
PACS:
03.75.Be, 03.65.-w
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