Hannover 2020 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 13: Posters: Quantum Optics and Photonics I
Q 13.63: Poster
Montag, 9. März 2020, 16:30–18:30, Empore Lichthof
EIT based storage and manipulation of light pulses with cold atoms in HCF — Wei Li1,2, •Parvez Islam1, Di Hu1,2, and Patrick Windpassinger1 — 1Institut für Physik, Johannes-Gutenberg-Universität Mainz, Staudingerweg 7, 55128 Mainz, Germany — 2School of Instrumentation and Opto-electronic Engineering, Beihang University, XueYuan Road 37, 100191 Beijing, P. R. China
Long distance quantum communications require the storage and on demand retrieval of qubits. A reliable light storage platform is using EIT to store light in the atomic coherence (spin waves). Combined with the potential of HCPCFs leads to enhanced light matter interaction and long-distance transport of quantum information. Furthermore, equipped with an optical conveyor belt, which can help transport the atomic ensembles, opens doors for realizing quantum registers by preparing a chain of atomic ensembles with stored photons.
We present our experiment of light storage and retrieval in an optical lattice. To this end we have successfully established storing in an optical lattice with storage times comparable to our transport times. The atomic ensemble is first loaded from a MOT and with the help of our optical conveyor belt transported into the hollow core fiber where we demonstrated successful storage of a light pulse. The storage has been optimized with the help of a circular polarized lattice along with a *magic* magnetic field and optical pumping to clock states. Subsequently, we aim to demonstrate light retrieval after transportation of the atomic ensemble through macroscopic distances.