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  • 03.75.Fi  (1)
  • Dynamics of nonlinear optical systems  (1)
  • PACS. 03.65.Ta Foundations of quantum mechanics; measurement theory – 42.50.-p Quantum optics  (1)
  • optical instabilities, optical chaos, and optical spatio-temporal dynamics  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Quantum limit for the atom-light interferometer (1995)
    Springer
    Applied physics 60 (1995), S. 187-191 
    Details
    ISSN: 1432-0649
    Keywords: 42.50.Dv ; 03.75.Dg ; 03.75.Fi
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The standard quantum limit is calculated for the atom-light interferometer. It is shown that the smallest detectable phase is $$\delta \phi _{\min } = \frac{1}{2}[N_{atoms} + 4N_{photons} )/N_{atoms} N_{photons} ]^{1/2} .$$ Therefore, in practical experiments, the accuracy is limited by the square root of the number of atoms. We propose a novel correlated atom-photon state interferometer which makes a transition to the Heisenberg limit, δφmin ∝ 1/N atoms, as the atoms approach a Bose condensate. Such an interferometer may serve as a sensitive probe of the onset of Bose condensation. Finally, we point out that the correlated atom-photon state preparation scheme we propose may be used in a different way to approach the Heisenberg limit for non-Bose-condensed atoms.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01135861
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Phonon-polariton interaction in a microcavity (1995)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 17 (1995), S. 1657-1662 
    Details
    ISSN: 0392-6737
    Keywords: Excitons and related phenomena (including electron-hole drops) ; Polaritons (including photon-phonon and photon-magnon interactions) ; Dynamics of nonlinear optical systems ; optical instabilities, optical chaos, and optical spatio-temporal dynamics ; Conference proceedings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary The linewidth of the microcavity exciton polariton is studied by onresonant and off-resonant photoluminescences. The two main contributions to the linewidth are caused by radiative loss and phonon scattering. The oscillator strength is found to be unmodified by the exciton-phonon coupling. Comparison is made between theory and experiment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02457259
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Comprehensive experimental test of quantum erasure (2002)
    Springer
    The European physical journal 18 (2002), S. 251-258 
    Details
    ISSN: 1434-6079
    Keywords: PACS. 03.65.Ta Foundations of quantum mechanics; measurement theory – 42.50.-p Quantum optics
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: In an interferometer, path information and interference visibility are incompatible quantities. Complete determination of the path will exclude any possibility of interference, rendering zero visibility. However, it is, under certain conditions, possible to trade the path information for improved (conditioned) visibility. This procedure is called quantum erasure. We have performed such experiments with polarization-entangled photon pairs. Using a partial polarizer, we could vary the degree of entanglement between the object and the probe. We could also vary the interferometer splitting ratio and thereby vary the a priori path predictability. This allowed us to test quantum erasure under a number of different experimental conditions. All experiments were in good agreement with theory.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1140/epjd/e20020030
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    Paper (German National Licenses)
    Fulltext
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