Control of coherent population transfer via spontaneous decay-induced coherence

Xihua Yang*, Shi Yao ZHU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

We investigate the effect of the spontaneous decay-induced coherence on the control of coherent population transfer in a closed double Λ -type four-level system with the energy separation of the excited doublet comparable to their decay rates by using the stimulated Raman adiabatic passage technique. It is shown that when the two pulse laser fields are tuned to the particular frequency where the condition for quantum interference is satisfied, remarkable enhancement or suppression of population transfer can be realized through the spontaneous emission constructive or destructive quantum interference even with a finite pulse area, which is very favorable to coherent population transfer in quantum systems with weak oscillator strengths.

Original languageEnglish
Article number063822
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume77
Issue number6
DOIs
Publication statusPublished - 16 Jun 2008

Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics

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