&lt;title&gt;Semiclassical theory of coherent optical effects in Bose-Einstein condensate of dilute gases&lt;/title&gt;

Vasil’ev, N. A.; Efimov, O. B.; Trifonov, E. D.; Shamrov, N. I.

doi:10.1117/12.561015

Cited by 3 publications

(4 citation statements)

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“…The main reason for the failure of the model employed in [7] is that it does not take spatial effects into account which, as we show here, are crucial in producing both the asymmetry and the X-shape pattern. Indeed, keeping only the two optical endfire modes, one can easily verify that in the semiclassical regime the model of [7] turns into a spatially-independent mean-field model similar to the ones employed e.g., in [9,10] and introduced at the end of Sec. II.…”

Section: B Discussionmentioning

confidence: 76%

“…Basic features of the atomic momentum distributions were theoretically discussed by a number of authors (see, e.g., [6,7,8,9,10]) without, however, giving a comprehensive description of the experimental observations. Reference [10], for example, examined a model in which two regimes of either pure forward scattering or combined backward and forward scattering could be distinguished depending on the external parameters.…”

Section: Introductionmentioning

confidence: 99%

“…The second main feature of our approach is the inclusion of spatial propagation effects. This aspect has been neglected in almost all previous quantal as well as semiclassical treatments of Bose-Einstein condensate (BEC) superradiance (see, e.g., [3,6,7,8,9,10]). References [14,15] examine some spatial effects in the BEC-light interaction, but do not provide a detailed comparison to the experimental observations of Refs.…”

Section: Introductionmentioning

confidence: 99%

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Spatial effects in superradiant Rayleigh scattering from Bose-Einstein condensates

2006

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We present a detailed theoretical analysis of superradiant Rayleigh scattering from atomic Bose-Einstein condensates. A thorough investigation of the spatially resolved time-evolution of optical and matter-wave fields is performed in the framework of the semiclassical Maxwell-Schrödinger equations. Our theory is not only able to explain many of the known experimental observations, e.g., the behavior of the atomic side-mode distributions, but also provides further detailed insights into the coupled dynamics of optical and matter-wave fields. To work out the significance of propagation effects, we compare our results to other theoretical models in which these effects are neglected.

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Section: B Discussionmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spatial effects in superradiant Rayleigh scattering from Bose-Einstein condensates

2006

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“…Ringing is often explained in terms of the pulse propagation effect [18], where the finite size and shape of the medium plays significant roles [19,20]. Adopting semi-classical theories, detailed modeling of SR from atomic condensates have been very successful, essentially capable of explaining both spatial and temporal evolutions of atomic and optical fields [21,22,23,24]. The semi-classical treatments, however, can account neither for the influence on sequential scattering associated with ring from side-mode patterns nor for quantum correlations between end-fire modes.…”

Section: Introductionmentioning

confidence: 99%

Quantum correlated light pulses from sequential superradiance of a condensate

et al. 2009

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We discover an inherent mechanism for entanglement swap associated with sequential superradiance from an atomic Bose-Einstein condensate. Based on careful examinations with both analytical and numerical approaches, we conclude that as a result of the swap mechanism, Einstein-Podolsky-Rosen-type quantum correlations can be detected among the scattered light pulses. © 2009 The American Physical Society

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Giant nonlocal Kerr nonlinearity and polaritonic solitons in a Rydberg-dressed Bose-Einstein condensate

Chen¹,

Bai²,

Hang³

et al. 2023

Opt. Express

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We present a scheme to generate nonlocal optical Kerr nonlinearity and polaritonic solitons via matter-wave superradiance in a Rydberg-dressed Bose-Einstein condensate (BEC). We show that the polariton spectrum of the scattered field generated by the superradiance is changed significantly due to the existence of the long-range Rydberg-Rydberg interaction between atoms, i.e. it has a roton-maxon form; moreover, the BEC structure factor displays a strong dependence on the Rydberg-dressing, which can be tuned in a controllable way. We also show that such a Rydberg-dressed BEC system can support a giant nonlocal optical Kerr nonlinearity, and hence allow the formation and stable propagation of polaritonic solitons, which have ultraslow propagation velocity and ultralow generation power. The results reported here are useful to understand the unique properties of Rydberg-dressing in BECs and have potential applications in optical information processing and transmission.

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<title>Semiclassical theory of coherent optical effects in Bose-Einstein condensate of dilute gases</title>

Cited by 3 publications

References 0 publications

Spatial effects in superradiant Rayleigh scattering from Bose-Einstein condensates

Spatial effects in superradiant Rayleigh scattering from Bose-Einstein condensates

Quantum correlated light pulses from sequential superradiance of a condensate

Giant nonlocal Kerr nonlinearity and polaritonic solitons in a Rydberg-dressed Bose-Einstein condensate

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