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  Three-dimensional theory for interaction between atomic ensembles and free-space light

Duan, L. M., Cirac, J. I., & Zoller, P. (2002). Three-dimensional theory for interaction between atomic ensembles and free-space light. Physical Review A, 66(2): 023818. 023818. Retrieved from http://link.aps.org/abstract/PRA/v66/e023818.

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Duan, L. M., Autor
Cirac, J. Ignacio1, Autor           
Zoller, P., Autor
Affiliations:
1Theory, Max Planck Institute of Quantum Optics, Max Planck Society, ou_1445571              

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 Zusammenfassung: Atomic ensembles have shown to be a promising candidate for implementations of quantum information processing by many recently discovered schemes. All these schemes are based on the interaction between optical beams and atomic ensembles. For description of these interactions, one assumed either a cavity- QED model or a one-dimensional light propagation model, which is still inadequate for a full prediction and understanding of most of the current experimental efforts that are actually taken in the three-dimensional free space. Here, we propose a perturbative theory to describe the three-dimensional effects in interaction between atomic ensembles and free-space light with a level configuration important for several applications. The calculations reveal some significant effects that were not known before from the other approaches, such as the inherent mode-mismatching noise and the optimal mode-matching conditions. The three-dimensional theory confirms the collective enhancement of the signal-to-noise ratio which is believed to be one of the main advantages of the ensemble-based quantum information processing schemes, however, it also shows that this enhancement needs to be understood in a more subtle way with an appropriate mode-matching method.

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Sprache(n): eng - English
 Datum: 2002-08
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 14630
ISI: 000177872600120
URI: http://link.aps.org/abstract/PRA/v66/e023818
 Art des Abschluß: -

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Titel: Physical Review A
  Alternativer Titel : Phys. Rev. A
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 66 (2) Artikelnummer: 023818 Start- / Endseite: - 023818 Identifikator: ISSN: 1050-2947