Quantum information protocols based on continuous-variable entangled states are attractive because they exploit standard optical modulation and measurement equipment, and do not require single photons. Recent progress in the field is reversing initial concerns about the practicality of the approach.
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Avoiding disentanglement of multipartite entangled optical beams with a correlated noisy channel
Scientific Reports Open Access 15 March 2017
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Ralph, T., Lam, P. A bright future for quantum communications. Nature Photon 3, 671–673 (2009). https://doi.org/10.1038/nphoton.2009.222
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DOI: https://doi.org/10.1038/nphoton.2009.222
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