Cooperative Lamb Shift in an Atomic Vapor Layer of Nanometer Thickness

2012/01/25 by J. Keaveney, James Keaveney, Armen Sargsyan +6 · 6 citations
Computer Science · Physics and Astronomy · #Mechanical and Optical Resonators #Quantum Information and Cryptography #Quantum optics and atomic interactions #physics.atom-ph

paper · pdf · doi:10.1103/physrevlett.108.173601

published as Phys. Rev. Lett. 108, 173601 (2012) · James Keaveney, Armen Sargsyan, Ulrich Krohn, Ifan G. Hughes, David Sarkisyan, Charles S. Adams

arxiv created 2012/01/25 · openalex publication_date 2012/04/23 · arxiv updated 2012/05/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present an experimental measurement of the cooperative Lamb shift and the Lorentz shift using a nanothickness atomic vapor layer 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 twice that of the optical field. The demonstration of cooperative interactions in an easily scalable system opens the door to a new domain for nonlinear optics.

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• Stochastic methods for light propagation and recurrent scattering in saturated and nonsaturated atomic ensembles
• Mesoscopic coherence in light scattering from cold, optically dense and disordered atomic systems
• THE DEPENDENT SCATTERING EFFECT ON RADIATIVE PROPERTIES OF MICRO/NANOSCALE DISCRETE DISORDERED MEDIA

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