Control of rubidium low-lying Rydberg states with trichromatic femtosecond p pulses for ultrafast quantum information processing
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We propose an ultrafast femtosecond time scale trichromatic π-pulse illumination scheme for coherent excitation and manipulation of low-lying Rydberg states in rubidium. Selective population of nP3/2 levels with principal quantum numbers n≲12 using 75-fs laser pulses is achieved. The density-matrix equations of a four-level ladder system beyond the rotating-wave approximation have to be solved to clarify the balance between the principal quantum numbers, the duration of the laser pulses, and the associated ac-Stark effects for the fastest optimal excitation. The mechanism is robust for femtosecond control using different level configurations for applications in ultrafast quantum information processing and spectroscopy.
CitationAfa, I.J., Font, J.L., Serrat, C. Control of rubidium low-lying Rydberg states with trichromatic femtosecond p pulses for ultrafast quantum information processing. "Physical review A", 20 Novembre 2017, vol. 96, núm. 5, p. 053843-1-053843-7.