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arXiv · 1801.04060

Leakage suppression by ultrafast pulse shaping

Hanlae Jo·Yunheung Song·Jaewook Ahn
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Abstract

We consider the leakage suppression problem of a three-level system in which the first two levels are the qubit system and the third, weakly-coupled to the second, is the leakage state. We show that phase- and amplitude-controlled two (three) pulses are sufficient for arbitrary qubit controls from the ground (an arbitrary) initial state, with leakage suppressed up to the first order of perturbation without additional pulse-area cost. A proof-of-principle experiment was performed with shaped femtosecond optical pulses and atomic rubidium showing a good agreement with the theory.

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Hanlae Jo, Yunheung Song, Jaewook Ahn. 2018-01-12. Leakage suppression by ultrafast pulse shaping. https://doi.org/10.1364/oe.27.003944

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