2005/07/26 by Mihai Macovei, Christoph H. Keitel, Christoph H Keitel · 2 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum Mechanics and Applications #Quantum optics and atomic interactions #quant-ph
paper · pdf · doi:10.1088/0953-4075/38/19/l02
published as J. Phys. B: At. Mol. Opt. 38, L315 (2005) · 9 pages
arxiv created 2005/07/26 · openalex publication_date 2005/09/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
The collective interaction via the environmental vacuum is investigated for a mixture of two different multi-atom ensembles in a moderately intense laser field. Due to the numerous inter-atomic couplings, the laser-dressed system may react sensitively and rapidly with respect to changes in the atomic and laser parameters. We show for weak probe fields that in the absence of absorption both the index of refraction and the group velocity may be modified strongly and rapidly due to the collectivity.