Hannover 2016 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 58: Poster: Quantum Optics and Photonics IV
Q 58.4: Poster
Thursday, March 3, 2016, 16:30–19:00, Empore Lichthof
Van der Waals interaction of Rydberg atoms in hollow-core fibers — •Helge Dobbertin1, Harald R. Haakh2, and Stefan Scheel1 — 1Universität Rostock, Rostock, Germany — 2Max Planck Institute for the Science of Light, Erlangen, Germany
The presence of material boundaries modifies the van der Waals interactions between atoms and molecules [1]. In hollow-core fibers, it has been shown that there exist regimes in which the (nonresonant) interaction between ground-state atoms can be exponentially suppressed due to the lack of available waveguide modes [2]. Conversely, the presence of such modes for the relevant atomic transition frequencies may lead to an extended interaction range. Due to their extreme polarizability, Rydberg atoms are ideal candidates for strong dispersion interactions. The appearance of resonant contributions to the van der Waals interaction for excited atoms at their resonance frequencies provides an additional handle [3]. Here, we show how the waveguide modes in a cylindrical hollow-core fiber affect the van der Waals potential between highly-excited Rydberg atoms and, as a result, their Rydberg blockade.
[1] H. Safari et al., Phys. Rev. A 74, 042101 (2006).
[2] H.R. Haakh and S. Scheel, Phys. Rev. A 91, 052707 (2015).
[3] H. Safari and M.R. Karimpour, Phys. Rev. Lett. 114, 013201 (2015).