Publisher Correction: Direct quantum process tomography via measuring sequential weak values of incompatible observables.

In the original version of this Article, the penultimate sentence of the second paragraph of the "Schematic and theory" section of the Results originally incorrectly read as "For instance, choosing θA = π/4, 0, -π/8 and π/8 rotates the bases |0>, |1>, |+>, and |-> into |1>, thereby implementing the observableÂ=|0><0|, |1><1|, |+><+| and, respectively." In the corrected version, "|-><-|" has been added before ", respectively". This error has been corrected in both the PDF and HTML versions of the Article.