Dipole decay rate between conducting plates in the presence of a cavity mode

Abstract EN

In the absence of external modes, cavity dimensions and dipole location are the main factors that increase, reduce and disallow dipole decay rate in the Cavity QED.

The presence of external modes with short cavity length, high atom velocity and high intensity is considered as a reasonable source of constrain to the dipole vector in a fixed direction.

As a result, only two orthogonal directions can be assumed: π polarization and σ polarization.

These directions can be used to illustrate the variations of Cavity QED effects with dipole adjustment.

Thus the distribution of the dipole decay rate across the plates separation is independent of the excited cavity mode.

In contrast, during the passage of a slow atom between the plates, the dipole can adjust itself along a local electric field direction.

In this work, it has been proven that the average dipole adjustment is determined at every point parallel to the direction of the electric mode vector of the excited cavity mode.

Also the subordination was shown to lead to observable changes in the dipole decay rate.

The above cases have been explored for situations involving sodium atoms between conducting plates of the sub-wavelength range.