Regular Article

The European Physical Journal D

, 67:92

Dynamical polarizability of atoms in arbitrary light fields: general theory and application to cesium

  • Fam Le KienAffiliated withVienna Center for Quantum Science and Technology, Institute of Atomic and Subatomic Physics, Vienna University of TechnologyInstitute of Physics, Vietnamese Academy of Science and Technology
  • , Philipp SchneeweissAffiliated withVienna Center for Quantum Science and Technology, Institute of Atomic and Subatomic Physics, Vienna University of Technology
  • , Arno RauschenbeutelAffiliated withVienna Center for Quantum Science and Technology, Institute of Atomic and Subatomic Physics, Vienna University of Technology Email author 

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Abstract

We present a systematic derivation of the dynamical polarizability and the ac Stark shift of the ground and excited states of atoms interacting with a far-off-resonance light field of arbitrary polarization. We calculate the scalar, vector, and tensor polarizabilities of atomic cesium using resonance wavelengths and reduced matrix elements for a large number of transitions. We analyze the properties of the fictitious magnetic field produced by the vector polarizability in conjunction with the ellipticity of the polarization of the light field.

Keywords

Quantum Optics