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Acoustic phonon-assisted damping of Rabi oscillations in InAs quantum dots

✍ Scribed by T. Moldaschl; T. Müller; S. Golka; G. Strasser; K. Unterrainer

Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
183 KB
Volume
40
Category
Article
ISSN
1386-9477

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✦ Synopsis

Excitonic ground state Rabi oscillations in InAs quantum dots are studied via an ultrafast spectral hole burning technique. From comparison with frequency domain data, we find that acoustic phonon-induced dephasing processes damp the oscillations.

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Within a general approach suitable to describe a coherently driven two-level system interacting with a dephasing reservoir, we have proposed various mechanisms to explain the nature of the damping of Rabi oscillations with increasing driving-pulse area in localized two-level semiconductor systems. W