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Ramsey-Bordé interferometer and embedded Ramsey interferometer with molecular matter waves of 39K2

  • Quantum Optics
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Abstract

A matter wave interferometer based on a molecular beam of K2 has been designed for observation of both exits: with molecules in the electronically excited state and in the ground state. In addition to the excited state fluorescence the molecular ground state population is detected with a further laser. Two transitions to different electronic states were employed for this purpose and their usefulness is compared. Under the present experimental conditions both interferometer exits show a superposition of different interference patterns due to the influence of transverse and longitudinal overlaps of the interfering matter waves. The interference patterns have been analyzed to be composed of a contribution caused by a two beam splitter Ramsey interference and Ramsey-Bordé pattern with four beam splitters. This overlap of interference signals influences the suitability of the matter wave interferometer for phase measurements of the interferences.

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Author notes

  1. I. Sherstov & C. Lisdat

    Present address: Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116, Braunschweig, Germany

Authors and Affiliations

  1. Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167, Hannover, Germany

    S. Liu, I. Sherstov, C. Lisdat, H. Knöckel & E. Tiemann

Authors
  1. S. Liu
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  2. I. Sherstov
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  3. C. Lisdat
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  4. H. Knöckel
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  5. E. Tiemann
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Corresponding author

Correspondence to H. Knöckel.

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Liu, S., Sherstov, I., Lisdat, C. et al. Ramsey-Bordé interferometer and embedded Ramsey interferometer with molecular matter waves of 39K2 . Eur. Phys. J. D 58, 369–377 (2010). https://doi.org/10.1140/epjd/e2010-00114-8

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  • DOI: https://doi.org/10.1140/epjd/e2010-00114-8

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