Rostock 2019 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 34: Quantum Information (Quantum Communication) I

Q 34.4: Talk

Wednesday, March 13, 2019, 14:45–15:00, S HS 002 Chemie

Single atoms in crossed fiber cavities — •Dominik Niemietz, Manuel Brekenfeld, Joseph D. Christesen, and Gerhard Rempe — Max-Planck-Institut für Quantenoptik, Garching, Deutschland

Cavity quantum electrodynamics provides a rich toolbox for the investigation of fundamental phenomena in quantum physics through increased light-matter coupling which enables many intriguing applications in quantum information processing [1]. A new manufacturing process of cavity mirrors [2, 3] paves the way for fiber cavities which have small mode volumes and therefore larger coupling rates. Due to their smaller dimensions, fiber cavities also allow for new cavity geometries, including coupling a single emitter to two independent and perpendicular cavity modes. We have set up a new experiment consisting of two crossed fiber cavities which realizes this unique cavity geometry. We will present measurements on trapped atoms coupling to both cavities including first results of a new quantum memory scheme.

[1] Reiserer et al., Rev. Mod. Phys. 87, 1379 (2015)

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

[3] Uphoff et al., New J. Phys. 17, 013053 (2015)