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    Inverse scattering transform for two-level systems with nonzero background

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    Author
    Biondini, Gino
    Gabitov, Ildar
    Kovačič, Gregor
    Li, Sitai
    Affiliation
    Univ Arizona, Dept Math
    Issue Date
    2019-07-24
    
    Metadata
    Show full item record
    Publisher
    AMER INST PHYSICS
    Citation
    J. Math. Phys. 60, 073510 (2019); https://doi.org/10.1063/1.5084720
    Journal
    JOURNAL OF MATHEMATICAL PHYSICS
    Rights
    Copyright © 2019 Author(s). Published under license by AIP Publishing.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    We formulate the inverse scattering transform for the scalar Maxwell-Bloch system of equations describing the resonant interaction of light and active optical media in the case when the light intensity does not vanish at infinity. We show that pure background states in general do not exist with a nonzero background field. We then use the formalism to compute explicitly the soliton solutions of this system. We discuss the initial population of atoms and show that the pure soliton solutions do not correspond to a pure state initially. We obtain a representation for the soliton solutions in determinant form and explicitly write down the one-soliton solutions. We next derive periodic solutions and rational solutions from the one-soliton solutions. We then analyze the properties of these solutions, including discussion of the sharp-line and small-amplitude limits, and thereafter show that the two limits do not commute. Finally, we investigate the behavior of general solutions, showing that solutions are stable (i.e., the radiative parts of solutions decay) only when initially atoms in the ground state dominate, i.e., initial population inversion is negative. Published under license by AIP Publishing.
    Note
    12 month embargo; published online: 24 July 2019
    ISSN
    0022-2488
    DOI
    10.1063/1.5084720
    Version
    Final published version
    Sponsors
    National Science Foundation [DMS-1615524, DMS-1615859]
    ae974a485f413a2113503eed53cd6c53
    10.1063/1.5084720
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    UA Faculty Publications

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