A two-dimensional electron gas along the *xy*-plane is considered. When an applied perpendicular magnetic field, directed along the *z*-axis, is turned on, the electrons move in cyclotron orbits and the components of the momentum along the *x*- and *y*-axes do not commute. This work shows that if the applied magnetic field is tilted at an angle\ θ\ with respect to the *z*-axis, the uncertainty in simultaneous measurements of the momentum components becomes dependent on\ θ.

},
author = {Rayda P Gammag and Cristine Villagonzalo}
}