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The realisation of a triggered entangled photon source will be of greatimportance in quantum information, including for quantum key distribution andquantum computation. We show here that: 1) the source reported in ``Asemiconductor source of triggered entangled photon pairs''[1. Stevenson et al.,Nature 439, 179 (2006)]} is not entangled; 2) the entanglement indicators usedin Ref. 1 are inappropriate, relying on assumptions invalidated by their owndata; and 3) even after simulating subtraction of the significant quantity ofbackground noise, their source has insignificant entanglement.Comment: 5 pages in pre-print format, 1 tabl

Source of triggered entangled photon pairs?