Solution
= Solution
Since $\pi^2=(qB)^2\rho^2$, oscillator algebra gives $H=\hbar\omega(a^\dagger a+1/2)$ with cyclotron frequency $\omega=qB/m$.
= Solution
Since $\pi^2=(qB)^2\rho^2$, oscillator algebra gives $H=\hbar\omega(a^\dagger a+1/2)$ with cyclotron frequency $\omega=qB/m$.