Ultimate conversion efficiency bound for the forward double-$\Lambda$ atom-light coupling scheme

Abstract

We show that for the two widely used configurations of the double-$\Lambda$ atom-light coupling scheme, one where the control fields are applied in the same $\Lambda$-subsystem and another where they applied in different $\Lambda$-subsystems, the forward propagation of the probe and signal fields is described by the same set of equations. We then use optimal control theory to find the spatially-dependent optimal control fields which maximize the conversion efficiency from the probe to the signal field, for a given optical density. The present work is expected to find application in the implementation of efficient frequency and orbital angular momentum conversion devices for quantum information processing, as well as to be useful to many other applications using the double-$\Lambda$ atom-light coupling scheme.

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Cited by in corpus (3)

• Optimal shape of STIRAP pulses for large dissipation at the intermediate level
• Efficient four-wave mixing in four-subband semiconductor quantum wells using spatially modulated control fields with a linearly varying mixing angle
• Optimized pulses for population transfer via laser induced continuum structures