Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 41: Poster: Quantum Optics and Photonics II

Q 41.34: Poster

Wednesday, March 13, 2019, 16:15–18:15, S Fobau Physik

A new apparatus for experiments with single atoms in crossed fiber cavities — •Manuel Brekenfeld, Dominik Niemietz, Joseph Christesen, and Gerhard Rempe — Max-Planck-Institut für Quantenoptik, Garching

Single atoms coupled to a quantized mode of the electromagnetic field confined in an optical resonator have proven to be a very clean and fruitful experimental platform for the study of fundamental quantum mechanical effects and have in recent years been tremendously successful with applications in the context of quantum information processing.

Current experimental advancement in the field comprises two directions of development: A further reduction of the mode volumes of the resonators, as with the development of fiber-based Fabry-Perot cavities (FFPCs) [1], and an increase in the number of well-controlled modes the atoms can couple to, either spatial [2] or frequency modes [3].

We have set up a new experiment which combines these two advancements in a single platform with single neutral atoms trapped at the center of two crossed FFPCs. We will present details on the apparatus, on trapping, cooling and manipulating atoms coupled to the cavities, as well as first results of a quantum storage experiment in this new experimental configuration.

[1] Hunger et al., New J. Phys. 12, 065038 (2010)

[2] Leonard et al., Nature 543, 87-90 (2017)

[3] Hamsen et al., Nat. Phys. 14, 885-889 (2018)