The Röntgen interaction and forces on dipoles in time-modulated optical fields

  title={The R{\"o}ntgen interaction and forces on dipoles in time-modulated optical fields},
  author={Matthias Sonnleitner and Stephen M. Barnett},
The Röntgen term is an often neglected contribution to the interaction between an atom and an electromagnetic field in the electric dipole approximation. In this work we discuss how this interaction term leads to a difference between the kinetic and canonical momentum of an atom which, in turn, leads to surprising radiation forces acting on the atom. We use a number of examples to explore the main features of this interaction, namely forces acting against the expected dipole force or… CONTINUE READING
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