ABSTRACT
As mentioned in Chapter 1, the Heisenberg matrix mechanics provides one of the three main avenues to quantum mechanics. This approach to quantum mechanics was disclosed in three papers authored by Heisenberg (1925), Born and Jordan (1925), and Born et al. (1926). An iconic result from the Heisenberg–Born–Jordan contribution was the commutation rule () p q − q p = h 2 π i https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781315216720/70121b16-f2c6-4331-b1ba-eecb806b93da/content/eq595.tif"/>
