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30 December 2019 Photonic circuits with time delays and quantum feedback using nanofibres and long coupling fibres
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Abstract
We study photonic circuits consisting of cold-atom ensembles coupled to light modes of optical nanofibres and long lengths of connecting or feedback fibres, such that the propagation time of light along these fibres is comparable to the timescale of the atomic dynamics. This provides a non-Markovian setting for quantum dynamics and feedback. The fibre-based platform enables implementation of a simple configuration for time-delayed quantum feedback where light emitted from the atoms propagates along a length of fibre and is reflected back towards the atoms by a fibre bragg grating (FBG). We will present the initial results of our experiments.
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M. Sadeghi Sr., S. Parkins, and M. D. Hoogerland "Photonic circuits with time delays and quantum feedback using nanofibres and long coupling fibres", Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 1120034 (30 December 2019); https://doi.org/10.1117/12.2540561
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