Intensity-dependent dispersion under conditions of electromagnetically induced transparency in coherently prepared multistate atoms

Andrew D. Greentree; Derek Richards; J. A. Vaccaro; A. V. Durrant; S. R. de Echaniz; D. M. Segal; J. P. Marangos

doi:10.1103/PhysRevA.67.023818

Intensity-dependent dispersion under conditions of electromagnetically induced transparency in coherently prepared multistate atoms

Andrew D. Greentree, Derek Richards, J. A. Vaccaro, A. V. Durrant, S. R. de Echaniz, D. M. Segal, and J. P. Marangos

Phys. Rev. A 67, 023818 – Published 28 February 2003

Abstract

Interest in lossless nonlinearities has focussed on the dispersive properties of $Λ$ systems under conditions of electromagnetically induced transparency (EIT). We generalize the $Λ$ system by introducing further degenerate states to realize a “chain $Λ ”$ atom where multiple coupling of the probe field significantly enhances the intensity-dependent dispersion without compromising the EIT condition.

Received 25 September 2002

DOI:https://doi.org/10.1103/PhysRevA.67.023818

Authors & Affiliations

Andrew D. Greentree^1,2, Derek Richards³, J. A. Vaccaro⁴, A. V. Durrant¹, S. R. de Echaniz⁵, D. M. Segal⁵, and J. P. Marangos⁵

¹Quantum Processes Group, Department of Physics and Astronomy, The Open University, Walton Hall, Milton-Keynes, MK7 6AA, United Kingdom
²Centre for Quantum Computer Technology, School of Physics, The University of New South Wales, Sydney NSW 2052, Australia
³Quantum Processes Group, Department of Applied Mathematics, The Open University, Walton Hall, Milton-Keynes, MK7 6AA, United Kingdom
⁴Department of Physics and Astronomy, The University of Hertfordshire, College Lane, Hatfield AL10 9AB, United Kingdom
⁵Quantum Optics and Laser Science, Blackett Laboratory, Imperial College of Science, Technology and Medicine, Prince Consort Road, London SW7 2BW, United Kingdom

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Vol. 67, Iss. 2 — February 2003

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