Fig. 6: Full control of enantiomer-selective state transfer, based on synchronized three-wave mixing.
From: Full quantum control of enantiomer-selective state transfer in chiral molecules despite degeneracy

a, b, and c Depict the rotational dynamics for the initial states J, τ = 1, − 1 with M = − 1, M = 0, and M = 1, respectively, where J, τ, and M are the asymmetric top quantum numbers, showing the population in the levels J, τ = 2, 0, J, τ = 2, − 1 and J, τ = 1, − 1. The two enantiomers are denoted by solid blue and dashed red lines. The envelope of the pulses is indicated by the orange (ω = ω1), pink (ω = ω2), and turquoise (ω = ω3) shapes. The height of these shapes indicates the maximal electric field strength (in arbitrary units) and the polarization is denoted by σ+, σ− and z. Time is given in units of t0 = ℏ/B, where B is a rotational constant. The initial (t = 0) and final (t = T) states are sketched in d, e, and f. The gray circles indicate which states are initially populated by both enantiomers, the blue (red) circles show which states are finally populated by enantiomer 1 (enantiomer 2). The transitions induced by the three fields are indicated by the orange, pink, and turquoise lines with the transition affecting the respective initial state highlighted. The frequencies ω1, ω2, and ω3 for carvone are listed in Table 1.