Manipulation of optical-pulse-imprinted memory in a $\Lambda$ system

摘要

We examine coherent memory manipulation in a $\Lambda$-type medium, using thesecond order solution presented by Groves, Clader and Eberly [J. Phys. B: At.Mol. Opt. Phys. 46, 224005 (2013)] as a guide. The analytical solution obtainedusing the Darboux transformation and a nonlinear superposition principledescribes complicated soliton-pulse dynamics which, by an appropriate choice ofparameters, can be simplified to a well-defined sequence of pulses interactingwith the medium. In this report, this solution is reviewed and put to test bymeans of a series of numerical simulations, encompassing all the parameterspace and adding the effects of homogeneous broadening due to spontaneousemission. We find that even though the decohered results deviate from theanalytical prediction they do follow a similar trend that could be used as aguide for future experiments.