Figure 1 | Scientific Reports

Figure 1

From: Dark state with counter-rotating dissipative channels

Figure 1

(a) A Λ-type three-level system driven by two fields with frequencies ω a and ω b , respectively. The field on the left (right), which drives the transition between |1〉 (|2〉) and |3〉, has a coupling strength Ω1 (Ω2) with this transition. The three-level system is also coupled to two bosonic baths, with the coupling strengths characterized by \({{\rm{\Gamma }}}_{a}\) and \({{\rm{\Gamma }}}_{b}\). (b) Schematic illustration of the applied control pulses, where τ is the period of the pulses, Δ is the duration of each pulse, and h is the strength of the pulse.

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