English

The cooperative Lamb shift in an atomic nanolayer

Atomic Physics 2012-05-31 v1

Abstract

We present an experimental measurement of the cooperative Lamb shift and the Lorentz shift using an atomic nanolayer with tunable thickness and atomic density. The cooperative Lamb shift arises due to the exchange of virtual photons between identical atoms. The interference between the forward and backward propagating virtual fields is confirmed by the thickness dependence of the shift which has a spatial frequency equal to 2k2k, i.e. twice that of the optical field. The demonstration of cooperative interactions in an easily scalable system opens the door to a new domain for non-linear optics.

Keywords

Cite

@article{arxiv.1201.5251,
  title  = {The cooperative Lamb shift in an atomic nanolayer},
  author = {James Keaveney and Armen Sargsyan and Ulrich Krohn and Ifan G. Hughes and David Sarkisyan and Charles S. Adams},
  journal= {arXiv preprint arXiv:1201.5251},
  year   = {2012}
}

Comments

James Keaveney, Armen Sargsyan, Ulrich Krohn, Ifan G. Hughes, David Sarkisyan, Charles S. Adams

R2 v1 2026-06-21T20:09:30.605Z