Creation and measurement of coherent superposition states in multilevel atoms

G. P. Djotyan, N. Sandor, J. S. Bakos, Zs Sörlei, W. Gawlik, A. Wojciechowski, J. Zachorowski, S. Pustelny, G. Yu Kryuchkyan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

We propose and analyze a scheme for creation of coherent superposition of meta-stable states in a multilevel atom. The scheme is based on interaction of a frequency modulated (chirped) laser pulse and a pulse of a constant carrier frequency with the atom having two meta-stable (ground) states and multiple excited states. The negligible excitation of the atoms is a priority in the proposed scheme to eliminate the de-coherence processes caused by the decay of the excited states. The scheme is applied to create coherent superposition of magnetic sublevels of ground states of the 87Rb atom taking into account all allowed electric-dipole transitions between magnetic sublevels of the 5 2S1/2 - 52P3/2 transition (D2 line). In addition to the theoretical analysis we consider possible experimental realizations of the proposed coherence creation scheme and discuss their feasibilities and constraints. We concentrate on a detection of the superposition state in the Faraday-rotation experiment. Such detection reduces technical laser noise background and offers high sensitivity of the coherence detection. Moreover, it allows extra control of the atomic sample and the interaction dynamics by external magnetic field.

Original languageEnglish
Title of host publicationInternational Conference on Laser Physics 2010
DOIs
Publication statusPublished - Apr 27 2011
EventInternational Conference on Laser Physics 2010 - Ashtarak, Armenia
Duration: Oct 12 2010Oct 15 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7998
ISSN (Print)0277-786X

Other

OtherInternational Conference on Laser Physics 2010
CountryArmenia
CityAshtarak
Period10/12/1010/15/10

Keywords

  • Faraday-rotation
  • coherent superposition
  • frequency chirped pulses
  • multilevel atom

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Djotyan, G. P., Sandor, N., Bakos, J. S., Sörlei, Z., Gawlik, W., Wojciechowski, A., Zachorowski, J., Pustelny, S., & Kryuchkyan, G. Y. (2011). Creation and measurement of coherent superposition states in multilevel atoms. In International Conference on Laser Physics 2010 [79981A] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7998). https://doi.org/10.1117/12.890857