Аннотация
We obtain the exact wave function of a monolayer phosphorene under a
low-intensity time-dependent magnetic field using the dynamical
invariant method. We calculate the quantum-mechanical energy expectation
value and the transition probability for a constant and an oscillatory
magnetic field. For the former we observe that the Landau level energy
varies linearly with the quantum numbers n and m and the magnetic field
intensity B-0: No transition takes place. For the latter, we observe
that the energy oscillates in time, increasing linearly with the Landau
level n and m and nonlinearly with the magnetic field. The (k,l)->(n,m)
mthorn transitions take place only for l - m: We investigate the (0, 0)
-> (n, 0) and (1, l) and (2, l) probability transitions.
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