Phonon induced Rabi frequency renormalization of optically driven single InGaAs-GaAs quantum dots - Condensed Matter > Mesoscale and Nanoscale PhysicsReportar como inadecuado




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Abstract: We study optically driven Rabi rotations of a quantum dot exciton transitionbetween 5 and 50 K, and for pulse-areas of up to $14\pi$. In a high drivingfield regime, the decay of the Rabi rotations is nonmonotonic, and the perioddecreases with pulse-area and increases with temperature. By comparing theexperiments to a weak-coupling model of the exciton-phonon interaction, wedemonstrate that the observed renormalization of the Rabi frequency is inducedby fluctuations in the bath of longitudinal acoustic phonons, an effect that isa phonon analogy of the Lamb-shift.



Autor: A. J. Ramsay, T. M. Godden, S. J. Boyle, E. M. Gauger, A. Nazir, B. W. Lovett, A. M. Fox, M. S. Skolnick

Fuente: https://arxiv.org/







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