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The dc conductivity for the direction parallel to the walls of a quasi-two-dimensional quantum well with a magnetic eld B = B^z applied normal to its barrier is obtained by using a quantum stastistical operator algebra technique. The electron and the phonon distribution functions are included in the relaxation rate, so all possible electron transitions, along with phonon absorptions and emissions, can be explained in an organized way. The numerical result shows that the width of the DC conductivity decreases with the well width and increases with the temperature.


The dc conductivity for the direction parallel to the walls of a quasi-two-dimensional quantum well with a magnetic eld B = B^z applied normal to its barrier is obtained by using a quantum stastistical operator algebra technique. The electron and the phonon distribution functions are included in the relaxation rate, so all possible electron transitions, along with phonon absorptions and emissions, can be explained in an organized way. The numerical result shows that the width of the DC conductivity decreases with the well width and increases with the temperature.