Editing Double-slit experiment (section)

===Weak measurement===
{{Main|Weak measurement}}
In a highly publicized experiment in 2012, researchers claimed to have identified the path each particle had taken without any adverse effects at all on the interference pattern generated by the particles.<ref>{{cite web|last=Francis|first=Matthew|title=Disentangling the wave–particle duality in the double-slit experiment|url=https://arstechnica.com/science/2012/05/disentangling-the-wave-particle-duality-in-the-double-slit-experiment/|website=Ars Technica|date=21 May 2012}}</ref> In order to do this, they used a setup such that particles coming to the screen were not from a point-like source, but from a source with two intensity maxima. However, commentators such as Svensson<ref name=Svensson2013>{{cite journal|last=Svensson|first=Bengt E. Y.|title=Pedagogical Review of Quantum Measurement Theory with an Emphasis on Weak Measurements |journal=Quanta |volume=2 |issue=1 |pages=18–49 |doi=10.12743/quanta.v2i1.12 |year=2013|arxiv=1202.5148 |s2cid=119242577 }}</ref> have pointed out that there is in fact no conflict between the [[weak measurement]]s performed in this variant of the double-slit experiment and the [[Heisenberg uncertainty principle]]. Weak measurement followed by post-selection did not allow simultaneous position and momentum measurements for each individual particle, but rather allowed measurement of the average trajectory of the particles that arrived at different positions. In other words, the experimenters were creating a statistical map of the full trajectory landscape.<ref name=Svensson2013/>