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Paper   IPM / P / 8951
School of Physics
  Title:   Causal Description of The Interaction of A Two-Level Atom with A Classical Field
1.  S.V. Mousavi
2.  M. Golshani
  Status:   Published
  Journal: Physica Scripta
  No.:  3
  Vol.:  78
  Year:  2008
  Pages:   035007
  Supported by:  IPM
We discuss the Bohmian paths of two-level atoms moving in a waveguide through an external resonance-producing field, perpendicular to the waveguide and localized in a region of finite diameter. The time spent by a particle in a potential region is not well-defined in standard quantum mechanics, but it is well defined in Bohmian mechanics. Bohm's theory is used for calculating the average time spent by a transmitted particle inside the field region and the arrival-time distributions at the edges of the field region. Using the Runge?Kutta method for the integration of the guidance law, some Bohmian trajectories were also calculated. Numerical results are presented for the special case of a Gaussian wave packet.

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