Speaker
Clare Higgins
(Durham University)
Description
Single photon sources are highly sought after because photons are excellent quantum information carriers, and are important for quantum communication and fundamental quantum optics. We use a ladder energy level system on the 5S$_{1/2}$-5P$_{3/2}$-5D$_{3/2}$ states of thermal $^{87}$Rb vapour to produce a heralded single photon source with a heralded auto-correlation value of $g^2(\tau = 0) = 0.22\pm 0.2$ which is non-classical. We also place the vapour in a 0.6 Tesla magnetic field to implement this scheme in the hyperfine Paschen-Back regime, where the transitions are separated by more that their linewidth, which allows for a cleaner system.
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Author
Clare Higgins
(Durham University)
Co-authors
Prof.
Ifan Hughes
(Durham University)
Dr
Danielle Pizzey
(Durham University)