Search Results - (Author, Cooperation:I. Mazets)

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  1. 1
    M. Gring ; M. Kuhnert ; T. Langen ; T. Kitagawa ; B. Rauer ; M. Schreitl ; I. Mazets ; D. A. Smith ; E. Demler ; J. Schmiedmayer
    American Association for the Advancement of Science (AAAS)
    Published 2012
    Staff View
    Publication Date:
    2012-09-08
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Mazets, I. E.
    Springer
    Published 1999
    Staff View
    ISSN:
    1090-6533
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract An analysis is made of four-wave mixing of laser radiation interacting with an ultracold degenerate ensemble of boson atoms trapped in a magnetic trap. It is shown that the existence of long-range order in this type of atomic system leads to a new mechanism for the generation of the reversed wave whose experimental manifestation should differ from four-wave mixing in a nondegenerate gas. A similar nonlinear optical effect may be used for diagnostics of an ultracold gas at temperatures not much lower than the phase transition temperature.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.1262681

    Articles: DFG German National Licenses
  3. 3
    Mazets, I. E.
    Springer
    Published 1999
    Staff View
    ISSN:
    1090-6533
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract The existence of a new of type of instability of a Bose condensate in a rarefied atomic gas due to momentum exchange with an external resonant spatially nonuniform radiation field is demonstrated theoretically.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.1262486

    Articles: DFG German National Licenses
  4. 4
    Mazets, I. E. ; Matisov, B. G. ; Kazinets, I. V.
    Springer
    Published 2000
    Staff View
    ISSN:
    1090-6533
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract Propagation of a resonant laser pulse through an optically dense Bose-Einstein condensate is theoretically investigated. Changes in the spatial distribution of the condensate after the laser pulse propagation are analyzed. It is shown that atoms escape from the condensate due to the joint action of two factors: the transition of atoms from the ground state to an excited state upon absorption of the resonant photons and the effect of a zero-result measurement. The latter effect is interpreted in terms of the theory of quantum measurements.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.1262807

    Articles: DFG German National Licenses
  5. 5
    Mazets, I. E. ; Matisov, B. G.
    Springer
    Published 1996
    Staff View
    ISSN:
    1090-6487
    Keywords:
    71.36.+c, 03.75.Fi
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract The Raman interaction of optical fields with a Bose condensate is studied in the adiabatic regime. A superposition of operators is found — one annihilating an atom in a metastable state and the other annihilating a photon in resonance with a transition from the ground state to an excited state — which is an adiabatic invariant of the problem (Raman polariton). Possible applications for Bose-condensate diagnostics and development of atomic lasers are proposed.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.567227

    Articles: DFG German National Licenses
  6. 6
    Morozov, A. O. ; Golikov, Yu. A. ; Mazets, I. E.
    Springer
    Published 1997
    Staff View
    ISSN:
    1090-6533
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract A new method is described for spectroscopic diagnostics of combustion and explosion products, which makes it possible to study processes occurring at short times in hot and dense molecular gases.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.1261882

    Articles: DFG German National Licenses
  7. 7
    Matisov, B. G. ; Grigorenko, I. A. ; Mazets, I. E.
    Springer
    Published 1997
    Staff View
    ISSN:
    1090-6509
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract We derive equations that describe the dynamics of three-level atoms with a cascade system of levels interacting with two resonant coherent fields in conditions where cooperative relaxation dominates over incoherent spontaneous emission. We calculate the temporal dynamics of the values of the atomic populations. The possibility of coherent population trapping in the presence of the cooperative decay is established. Finally, we calculate the averaged population of the intermediate level as a function of detuning for different values of the coupling constant.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.558332

    Articles: DFG German National Licenses
  8. 8
    Mazets, I. E. ; Matisov, B. G.
    Springer
    Published 1997
    Staff View
    ISSN:
    1090-6533
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract A method is proposed for resolving experimentally the details of the resonant fluorescence spectrum of a Bose condensate within a homogeneous line whose width is greatly increased because of collective effects. A discussion is presented concerning the application of this method for determining the shifts of the resonant frequencies of the transitions in the condensate as compared to the usual case of nondegenerate atom ensembles.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.1261859

    Articles: DFG German National Licenses
  9. 9
    Staff View
    ISSN:
    1090-6525
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract Equations are derived which describe the dynamics of three-level atoms with a Λ level scheme, interacting with two coherent resonance fields under conditions such that cooperative relaxation predominates over incoherent spontaneous emission. A numerical calculation of the temporal dynamics of the values of the atomic populations is performed. It is shown that coherent population trapping in the presence of cooperative decay is possible. The quantities characterizing this phenomenon are calculated—the width of the black line and the transition time to coherent trapping in this scheme.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.1259044

    Articles: DFG German National Licenses
  10. 10
    Mazets, I. E.
    Springer
    Published 2000
    Staff View
    ISSN:
    1090-6525
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract The dipole moment of each of two uncharged conducting spheres with radius R in an external electric field was calculated. The distance between the centers of the spheres is 2l. It was shown that, if R/l≲0.8, the influence of higher multipole moments is negligible.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1134/1.1318957

    Articles: DFG German National Licenses
  11. 11
    Mazets, I. ; Windholz, L.
    Springer
    Published 1995
    Staff View
    ISSN:
    1434-6079
    Keywords:
    42.65.G ; 42.50.Rh
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Physics
    Notes:
    Abstract The influence of thermal motion of atoms on laser light propagation through a coherent optically dense medium is investigated theoretically. If the laser light intensity does not exceed a certain threshold value (intensity of coherent population trapping switching on multiplied by square of ratio of Doppler broadening to natural linewidth), the propagation law is strongly influenced by atomic motion: the laser intensity decreases neither exponentially, nor linearily, but as second-order polynomial of the optical depth. Above this threshold the propagation law is linear.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01745525

    Articles: DFG German National Licenses