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Physics > Atomic Physics

arXiv:1605.08894 (physics)
[Submitted on 28 May 2016]

Title:Trapping neutral particles endowed with a magnetic moment by an electromagnetic wave carrying orbital angular momentum: Semiclassical theory

Authors:Iwo Bialynicki-Birula, Tomasz Radożycki
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Abstract:The motion of a neutral atom endowed with a magnetic moment interacting with the magnetic field is determined from the Ehrenfest-like equations of motion. These equations for the average values of the translational and spin degrees of freedom are derived from the Schrödinger-Pauli wave equation and they form a set of nine coupled nonlinear evolution equations. The numerical and analytic solutions of these equations are obtained for the combination of the rotating magnetic field of a wave carrying orbital angular momentum and a static magnetic field. The running wave traps the atom only in the transverse direction while the standing wave traps the atom also in the direction of the beam.
Comments: 11 figures
Subjects: Atomic Physics (physics.atom-ph); Quantum Physics (quant-ph)
Cite as: arXiv:1605.08894 [physics.atom-ph]
  (or arXiv:1605.08894v1 [physics.atom-ph] for this version)
  https://doi.org/10.48550/arXiv.1605.08894
Journal reference: Physical Review A 93, 063402 (2016)
Related DOI: https://doi.org/10.1103/PhysRevA.93.063402

Submission history

From: Iwo Bialynicki-Birula [view email]
[v1] Sat, 28 May 2016 13:49:06 UTC (1,295 KB)
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