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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. 27, Iss. 6 — Jun. 1, 2010
  • pp: A208–A232

Dipole blockade in a cold Rydberg atomic sample [Invited]

Daniel Comparat and Pierre Pillet  »View Author Affiliations


JOSA B, Vol. 27, Issue 6, pp. A208-A232 (2010)
http://dx.doi.org/10.1364/JOSAB.27.00A208


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Abstract

We review here the studies performed about interactions in an assembly of cold Rydberg atoms. We focus especially on the review of the dipole–dipole interactions and on the effect of the dipole blockade in the laser Rydberg excitation, which offers attractive possibilities for quantum engineering. We present first the various interactions between Rydberg atoms. The laser Rydberg excitation of such an assembly is then described with the introduction of the dipole blockade phenomenon. We report recent experiments performed in this subject by starting with the case of a pair of atoms allowing the entanglement of the wave-functions of the atoms and opening a fascinating way for the realization of quantum bits and quantum gates. We consider then several works on the blockade effect in a large assembly of atoms for three different configurations: blockade through electric-field induced dipole, through Förster resonance, and in van der Waals interaction. The properties of coherence and cooperativity are analyzed. Finally, we treat the role of dipole–dipole interactions between Rydberg atoms responsible for Penning ionization. The perturbation of the dipole blockade by ions and the evolution of the Rydberg towards an ultracold plasma are discussed.

© 2010 Optical Society of America

OCIS Codes
(020.2070) Atomic and molecular physics : Effects of collisions
(020.5780) Atomic and molecular physics : Rydberg states
(020.3320) Atomic and molecular physics : Laser cooling

ToC Category:
Cold Atoms, Ions, Electrons, and Molecules

History
Original Manuscript: April 9, 2010
Manuscript Accepted: April 17, 2010
Published: June 1, 2010

Virtual Issues
(2010) Advances in Optics and Photonics

Citation
Daniel Comparat and Pierre Pillet, "Dipole blockade in a cold Rydberg atomic sample [Invited]," J. Opt. Soc. Am. B 27, A208-A232 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-6-A208


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