Hannover 2020 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 54: Posters: Quantum Optics and Photonics IV
Q 54.46: Poster
Thursday, March 12, 2020, 16:30–18:30, Empore Lichthof
Single trapped atoms coupled to crossed fiber cavities — •Pau Farrera1,2, Dominik Niemietz1, Manuel Brekenfeld1, Gianvito Chiarella1, Joseph Dale Christesen1,3, and Gerhard Rempe1 — 1Max Planck Institute of Quantum Optics, 85748 Garching, Germany — 2ICFO-The Institute of Photonic Sciences, Barcelona, Spain — 3NIST, Boulder, Colorado 80305, USA
Recent experimental advancement in the field of optical cavity QED 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 emitters can couple to [2,3]. We have set up a new experiment that combines these two experimental advancements in a single platform with single neutral atoms trapped at the center of two crossed FFPCs. This novel setup provides new challenges and capabilities, such as the fabrication and assembling of high-finesse fiber cavities, the strong coupling of single atoms to both cavity modes for long trapping times, the atom imaging system, or the microwave manipulation of the atomic states. Some of the mentioned capabilities were recently used to implement a passive, heralded and high fidelity optical quantum memory. In the future, they will enable the development of other novel quantum information processing schemes based on two-mode cavity QED.
[1] Hunger et al., New J. Phys. 12, 065038 (2010)
[2] Leonard et al.,Nature 543, 87 (2017)
[3] Hamsen et al., Nat. Phys. 14, 885 (2018)