Optoelectrical Cooling of Polar Molecules

Barbara G.U. Englert, Martin Zeppenfeld, Manuel Mielenz, Christian Sommer, Josef Bayerl, Michael Motsch, Pepijn W.H. Pinkse, Gerhard Rempe

    Research output: Contribution to conferencePosterOther research output


    We present progress towards the experimental realization of optoelectrical cooling [1] which is widely applicable for producing samples of ultracold (<1 mK) polar molecules. This scheme exploits the interaction between trapped molecules and electric fields to remove energy, while a spontaneous vibrational decay removes entropy. The trap, a key element of this method, must not only provide long lifetimes, but also regions of variable homogenous electric fields, allowing the required addressing of transitions between individual rotational sublevels. We consider in detail the design of this microstructured electrical trap, where a trap depth of 1 K can be achieved. Careful patterning of the electrodes allows a suppression of trap losses by Majorana flips. [1] M. Zeppenfeld et al., Phys. Rev. A 80, 041401(R) (2009).
    Original languageEnglish
    Publication statusPublished - 11 Mar 2010
    EventDPG Frühjahrstagung 2010 Hannover: (DPG Spring Meeting) - Hannover, Germany
    Duration: 8 Mar 201012 Mar 2010


    ConferenceDPG Frühjahrstagung 2010 Hannover
    Other82. Jahrestagung der DPG und DPG-Frühjahrstagung der Sektion AMOP (Atome, Moleküle, Quantenoptik und Plasmen)
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