Electromagnetically induced transparency in a double well atomic Josephson junction

J. O. Weatherall, C. P. Search

Research output: Contribution to journalArticle

Abstract

Electromagnetically induced transparency is an important tool for controlling light propagation and nonlinear wave mixing in atomic gases with potential applications ranging from quantum computing to table top tests of general relativity. Here we consider electromagnetically induced transparency in an atomic Bose-Einstein condensate trapped in a double well potential. One well is prepared as in standard electromagnetically induced transparency with a weak probe laser and control laser in a Λ configuration while tunneling between the wells provides a coherent coupling between identical electronic states in the two wells leading to the formation of spatially delocalized inter-well dressed states. The macroscopic inter-well coherence of the Bose-Einstein condensate wave function qualitatively modifies the normal electromagnetically induced transparency linear susceptibility and leads to the formation of additional absorption resonances and larger dispersion than electromagnetically induced transparency. We show that these new resonances can be interpreted in terms of the inter-well dressed states and the formation of a novel type of dark state involving the control laser and the inter-well tunneling.

Original languageEnglish (US)
Pages (from-to)455-459
Number of pages5
JournalActa Physica Polonica A
Volume116
Issue number4
DOIs
StatePublished - Oct 2009

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Josephson junctions
Bose-Einstein condensates
lasers
monatomic gases
quantum computation
relativity
wave functions
magnetic permeability
propagation
probes
configurations
electronics

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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Electromagnetically induced transparency in a double well atomic Josephson junction. / Weatherall, J. O.; Search, C. P.

In: Acta Physica Polonica A, Vol. 116, No. 4, 10.2009, p. 455-459.

Research output: Contribution to journalArticle

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