Generation of third-order parametric down-conversion photons via weak nonlinearities
- 12 February 2021
- journal article
- research article
- Published by IOP Publishing in Journal of Physics B: Atomic, Molecular and Optical Physics
- Vol. 54 (5), 055404
- https://doi.org/10.1088/1361-6455/abe5c8
Abstract
A higher-order parametric down-conversion (PDC) photon state is amazingly different from the states involving independent photon pairs. We focus on the third-order PDC photons. Firstly, we present a symmetry detector which is capable of analyzing twin-beam six-photon symmetric states in the regime of weak nonlinearities. By cascading symmetry detectors, then, it is shown that one can generate third-order PDC photons from a class of twin-beam six-photon symmetric states. Finally, as an example, we describe an application of third-order PDC photons for exploring six-mode-photon entangled states with linear optics.Funding Information
- the National Nature Science Foundation of China (12071110)
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