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Non-Hermitian quantum mechanics versus the conventional quantum mechanics: Effect of the relative phasing of bichromatic fields on high-order harmonic generation
2004
Physical Review A. Atomic, Molecular, and Optical Physics
We perform a dynamical symmetry analysis (DSA) of the high-order harmonic generation (HHG) spectrum of an atom interacting with a bichromatic laser field. Within the framework of the conventional Hermitian quantum mechanics (QM), the HHG spectrum calculated using a single Floquet state, or any finite number of Floquet states, is invariant under the inversion of the relative phase of the two-frequency components, → −. The asymmetry with respect to the phase inversion seen in the simulated HHG
doi:10.1103/physreva.69.043404
fatcat:kyr3xjrflraqndhy2i5pnrgmze