Coherent conversion of single photons from one frequency to another is nowadays a mature process. It can be achieved on both directions, up, or down, it preserves quantum properties such as time-bin, or polarization entanglement, and internal conversion efficiencies approach 100%. The main motivation for coherent frequency conversion is to interface photonic quantum bits in […]
Read MoreI keep coming across commentary lamenting the increase in the number of authors on scientific papers (or patents), such as by Philip J. Wyatt in Physics Today and related posts in the blogosphere, e.g. a very recent one by UNC Chapel Hill marine ecologist John Bruno on Seamonster. This intriguing development seems diametrically opposed to […]
Read MoreIf ever there was a paper the linear optics community got as excited about as the now famous KLM paper, it was Aaronson and Arkhipov’s “The computational complexity of linear optics“. Fast forward two years and we have just published a first experimental implementation of the BosonSampling task introduced by the two ‘As’ in Science. […]
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