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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 6 — Jun. 1, 2012
  • pp: 1551–1556

Selective and efficient control of population transfer in the presence of an equally populated initial doublet

Zhenhua Zhang, Xihua Yang, and Xiaona Yan  »View Author Affiliations


JOSA B, Vol. 29, Issue 6, pp. 1551-1556 (2012)
http://dx.doi.org/10.1364/JOSAB.29.001551


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Abstract

We present a way to realize selective, robust, and efficient population transfer in a ladder-type four-level system with an equally populated doublet in the initial state. By merging stimulated Raman adiabatic passage and chirped adiabatic passage techniques, we show that selective and complete population transfer from either of the initial doublet levels to the final state can be achieved with chirped pump and Stokes pulse pairs when the spectral resolution constraint of a frequency swept pulse holds (the energy separation of doublet levels should be much larger than the pulse bandwidth). We further demonstrate that the spectral resolution of selective population transfer can be enhanced significantly by using pump pulse pair and Stokes pulse due to temporal quantum interference between the sequential transitions in the time domain, which can also be well followed as a result of the frequency-domain formation of a comblike structure of the pulse pair spectrum. The proposals take into account the case of population transfer in realistic atomic and molecular systems, and may have applications in quantum coherent control of systems with equally populated initial manifolds.

© 2012 Optical Society of America

OCIS Codes
(270.0270) Quantum optics : Quantum optics
(270.5585) Quantum optics : Quantum information and processing

ToC Category:
Quantum Optics

History
Original Manuscript: February 8, 2012
Revised Manuscript: April 13, 2012
Manuscript Accepted: April 19, 2012
Published: June 1, 2012

Citation
Zhenhua Zhang, Xihua Yang, and Xiaona Yan, "Selective and efficient control of population transfer in the presence of an equally populated initial doublet," J. Opt. Soc. Am. B 29, 1551-1556 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-6-1551

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