Monika Leibscher
University of Kassel
Phase (waves)PhysicsMixing (physics)Enantioselective synthesisChemical physicsRotational–vibrational spectroscopyDegeneracy (mathematics)Quantum numberRacemic mixturePopulationSpectroscopyMoleculeAxial symmetrySymmetry (physics)ControllabilityEnantiomerQuantum mechanicsGround stateDegenerate energy levelsExcitation
3Publications
1H-index
22Citations
Publications 3
Newest
#1Eugenio PozzoliH-Index: 3
#2Monika LeibscherH-Index: 1
Last. Christiane P. Koch (FU: Free University of Berlin)H-Index: 33
view all 5 authors...
We present an analytical approach to construct the Lie algebra of finite-dimensional subsystems of the driven asymmetric top rotor. Each rotational level is degenerate due to the isotropy of space, and the degeneracy increases with rotational excitation. For a given rotational excitation, we determine the nested commutators between drift and drive Hamiltonians using a graph representation. We then generate the Lie algebra for subsystems with arbitrary rotational excitation using an inductive arg...
#1Monika LeibscherH-Index: 1
#2Eugenio PozzoliH-Index: 3
Last. Christiane P. Koch (FU: Free University of Berlin)H-Index: 33
view all 7 authors...
We prove complete controllability for rotational states of an asymmetric top molecule belonging to degenerate values of the orientational quantum number M. Based on this insight, we construct a pulse sequence that energetically separates population initially distributed over degenerate M-states, as a precursor for orientational purification. Introducing the concept of enantio-selective controllability, we determine the conditions for complete enantiomer-specific population transfer in chiral mol...
#1Monika Leibscher (University of Kassel)H-Index: 1
#2Thomas F. GiesenH-Index: 39
Last. Christiane P. KochH-Index: 33
view all 3 authors...
Three-wave mixing spectroscopy of chiral molecules, which exist in left-handed and right-handed conformations, allows for enantioselective population transfer despite random orientation of the molecules. This is based on constructive interference of the three-photon pathways for one enantiomer and the destructive one for the other. We prove here that three mutually orthogonal polarization directions are required to this end. Two different dynamical regimes exist to realize enantioselective popul...
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