Robust two-level system control by a detuned and chirped laser pulse

Abstract

We propose and demonstrate a robust control scheme by ultrafast nonadiabatic chirped laser pulse, designed for targeting coherent superpositions of two-level systems. Robustness against power fluctuation is proved by our numerical study and a proof-of-principle experiment performed with femtosecond laser interaction on cold atoms. They exhibit for the final driven dynamics a cusp on the Bloch sphere, corresponding to a zero curvature of fidelity. This solution is particularly simple and thus applicable to a wide range of potential applications.

5 pages. 4 figures

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• Quantum teleportation using active feed-forward between two Canary Islands
• Arbitrarily accurate composite pulses
• Selective excitation in a three-state system using a hybrid adiabatic-nonadiabatic interaction

Cited by in corpus (4)

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• Stimulated Raman adiabatic passage: effect of system parameters on population transfer