About the Exact Role of Disturbance in Heisenberg's Uncertainty Relation

It is generally accepted that the disturbance interpretation cannot explainHeisenberg's uncertainty relation DxDp=h. In this paper a clear distinctionwill be made between the notions of state preparation and measurement, notingthat the disturbance that is referred to in Heisenberg's disturbanceinterpretation is usually caused by the measurement. The main goal of thispaper is to examine and discuss to what extent disturbance during the statepreparation plays a role in the interpretation of Heisenberg's uncertaintyrelation. This examination will be done in the context of a single-slitexperiment. To conclude this paper a novel single-slit experiment will beproposed and discussed with which a clearer insight could be gained into theexact role of disturbance when a quantum system passes a single-slit.