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Recall that for a two-level system driven by the Hamiltonian H= 0 σz /2+g [σx cos (δt) + σy sin (δt)], the corresponding time evolution operator is given by U (t) = e-iδt (σz /2) e-i [(0 -δ) (σz /2) +g σx] t. Equation 15 corresponds to 0 =0.
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Recall that for a two-level system driven by the Hamiltonian H= 0 σz /2+g [σx cos (δt) + σy sin (δt)], the corresponding time evolution operator is given by U (t) = e-iδt (σz /2) e-i [(0 -δ) (σz /2) +g σx] t. Equation 15 corresponds to 0 =0.
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