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arXiv · 2010.05570

Delaying two-photon Fock-states in a hot cesium vapor using on-demand generated single-photons from a semiconductor quantum dot

Hüseyin Vural·Simon Seyfferle·Ilja Gerhardt·Michael Jetter·Simone L. Portalupi·Peter Michler
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Abstract

Single photons from solid-state quantum emitters are playing a crucial role in the development of photonic quantum technologies. Higher order states, such as N-photon Fock-states allow for applications e.g. in quantum-enhanced sensing. In this study, we utilize the dispersion of a hot cesium vapor at the D1 lines to realize a temporal delay for one and two-photon Fock-states as a result of the slow-light effect. Single photons are generated on-demand from an InGaAs quantum dot, while their quantum interference at a beam splitter is used to generate a two-photon Fockstate. We verify the successful propagation and temporal delay of both the one and two-photon Fock-states, while a significant delay (5x initial photon length) with simultaneous high transmission (~90 %) is achieved.

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Hüseyin Vural, Simon Seyfferle, Ilja Gerhardt, Michael Jetter, Simone L. Portalupi, Peter Michler. 2020-10-12. Delaying two-photon Fock-states in a hot cesium vapor using on-demand generated single-photons from a semiconductor quantum dot. https://doi.org/10.1103/physrevb.103.195304

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