ABSTRACT
We define the position operator https://www.w3.org/1998/Math/MathML"> x ^ https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429325762/7bf5c08f-5281-4a4c-8daa-98d045c0d7ea/content/ic43.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> in one dimension by the eigenvalue equation
