Published in
American Physical Society, Physical review B, 15(78), 2008
DOI: 10.1103/physrevb.78.155315
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Proposal for geometric generation of a biexciton in a quantum dot using a chirped pulse
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Abstract
We propose to create a biexciton by a coherent optical process using a frequency-sweeping (chirped) laser pulse. In contrast to the two-photon Rabi flop scheme, the present method uses the state transfer through avoided level crossing and is a geometric control. The proposed process is robust against pulse area uncertainty, detuning, and dephasing. The speed of the adiabatic operation is constrained by the biexciton binding energy. ; Comment: 4 pages, 4 figures