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Quantum interference effects in a Λ-type atom interacting with two short laser pulse trains

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Abstract

We study the quantum interference between the excitation pathways in a three-level Λ-type atom interacting with two short laser pulse trains under the conditions of electromagnetically induced transparency. The probability amplitude equations which describe the interaction of a three-level Λ-type atom with two laser pulse trains are numerically solved. We derive analytical expressions for the population of the upper excited state for resonant laser pulse trains with a rectangular temporal profile. By varying the parameters of the laser pulse trains such as area of a single pulse, detuning, repetition period, and number of individual pulses, we analyze the quantum interference between the excitation pathways in terms of the upper excited state population.

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Authors and Affiliations

  1. Institute of Space Sciences, Bucharest-Măgurele, P.O. Box MG-23, Măgurele, 77125, Romania

    Gabriela Buica

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  1. Gabriela Buica
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Correspondence to Gabriela Buica.

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Buica, G. Quantum interference effects in a Λ-type atom interacting with two short laser pulse trains. Eur. Phys. J. D 68, 311 (2014). https://doi.org/10.1140/epjd/e2014-50290-4

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  • DOI: https://doi.org/10.1140/epjd/e2014-50290-4

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