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Thomas Pohl

Coherent Population Trapping with Controlled Interparticle Interactions

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  • H. Schempp, Heidelberg Univ, Ruprecht Karl University Heidelberg, Dept Polit Sci
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  • G. Guenter, Heidelberg Univ, Ruprecht Karl University Heidelberg, Dept Polit Sci
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  • S.C. Hofmann, Heidelberg Univ, Ruprecht Karl University Heidelberg, Dept Polit Sci
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  • C. Giese, Univ Kassel, Inst Phys, Cardiology, Univ of Heidelberg, Heidelberg, Germany, Heidelberg Univ, Ruprecht Karl University Heidelberg, Dept Polit Sci
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  • S. D. Saliba, Heidelberg Univ, Ruprecht Karl University Heidelberg, Dept Polit Sci
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  • B.D. DePaola, Heidelberg Univ, Ruprecht Karl University Heidelberg, Dept Polit Sci
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  • T. Amthor, Heidelberg Univ, Ruprecht Karl University Heidelberg, Dept Polit Sci
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  • M. Weidemueller, Heidelberg Univ, Ruprecht Karl University Heidelberg, Dept Polit Sci
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  • S. Sevincli, Max Planck Inst Phys Komplexer Syst, Max Planck Society
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  • T. Pohl

We investigate coherent population trapping in a strongly interacting ultracold Rydberg gas. Despite the strong van der Waals interactions and interparticle correlations, we observe the persistence of a resonance with subnatural linewidth at the single-particle resonance frequency as we tune the interaction strength. This narrow resonance cannot be understood within a mean-field description of the strong Rydberg-Rydberg interactions. Instead, a many-body density matrix approach, accounting for the dynamics of interparticle correlations, is shown to reproduce the observed spectral features.

Original languageEnglish
Article number173602
JournalPhysical Review Letters
Volume104
Issue17
Number of pages4
ISSN0031-9007
DOIs
Publication statusPublished - 30 Apr 2010
Externally publishedYes

    Research areas

  • ELECTROMAGNETICALLY INDUCED TRANSPARENCY, RYDBERG ATOMS

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