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|Title:||Raman transitions without adiabatic elimination: A simple and accurate treatment||Authors:||Han, R.
Khoon Ng, H.
|Issue Date:||1-Feb-2013||Citation:||Han, R., Khoon Ng, H., Englert, B.-G. (2013-02-01). Raman transitions without adiabatic elimination: A simple and accurate treatment. Journal of Modern Optics 60 (4) : 255-265. ScholarBank@NUS Repository. https://doi.org/10.1080/09500340.2013.770573||Abstract:||Driven Raman processes - nearly resonant two-photon transitions through an intermediate state that is non-resonantly coupled and does not acquire a sizeable population - are commonly treated with a simplified description in which the intermediate state is removed by adiabatic elimination. While the adiabatic-elimination approximation is reliable when the detuning of the intermediate state is quite large, it cannot be trusted in other situations, and it does not allow one to estimate the population in the eliminated state. We introduce an alternative method that keeps all states in the description, without increasing the complexity by much. An integro-differential equation of Lippmann-Schwinger type generates a hierarchy of approximations, but very accurate results are already obtained in the lowest order. © 2013 Copyright Taylor and Francis Group, LLC.||Source Title:||Journal of Modern Optics||URI:||http://scholarbank.nus.edu.sg/handle/10635/97748||ISSN:||09500340||DOI:||10.1080/09500340.2013.770573|
|Appears in Collections:||Staff Publications|
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