Does Measurement in the X Direction Affect Y Coordinate in Quantum Systems?

[Amith2006]

Does x & y directions commute? Seem trivial! Just wondering whether any measurement made in the x direction affect it's y coordinate.

 

[diazona]

The position operators in different dimensions do commute with each other. Same with momentum. But it's not always the case that the different components of a vector operator commute - for example, angular momentum.

 

[Amith2006]

Thanx buddy.