Comment on “Transient dynamics of Ohmic dissipative two-level systems driven by dc-ac fields” by Wang and Zhao

Zusammenfassung

Recent results on the dynamics of a two-state system driven by dc-ac fields are discussed. We show that the approximation put forward in the work by Wang and Zhao [Phys. Lett. A 217 (1996) 232] gives qualitative incorrect results for the dynamics when effects of the dc field in the presence or absence of the ac field are considered.