On decoherence of electromagnetically-induced transparency in atomic vapor

Abstract

We report characterization of electromagnetically induced transparency (EIT) resonances in the D1 line of Rb-87 under various experimental conditions. The dependence of the EIT linewidth on the power of the pump field was investigated, at various temperatures, for the ground states of the lambda-system associated with different hyperfine levels of the atomic 5S_1/2 state as well as magnetic sublevels of the same hyperfine level. Strictly linear behavior was observed in all cases. A theoretical analysis of our results shows that dephasing in the ground state is the main source of decoherence, with population exchange playing a minor role.

References in corpus (6)

• Storage of light in atomic vapor
• Storage and retrieval of single photons transmitted between remote quantum memories
• Narrowing of EIT resonance in a Doppler Broadened Medium
• From Laser Induced Line Narrowing To Electromagnetically Induced Transparency: Closed System Analysis
• Raman Adiabatic Transfer of Optical States
• Comparison of 87Rb N-resonances for D1 and D2 transitions

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