Long-time correlation in non-Markovian dephasing of an exciton-phonon system in InAs quantum dots.
Phys Rev Lett
; 112(14): 147404, 2014 Apr 11.
Article
in En
| MEDLINE
| ID: mdl-24766013
ABSTRACT
We have observed a time-correlated frequency fluctuation in non-Markovian dephasing of excitons in InAs quantum dots using a six-wave mixing technique. In this measurement, the arrival times of the excitation pulses were controlled to eliminate the influence of Markovian dephasing and to measure the pure non-Markovian behavior. The experimental result shows that the time correlation of the frequency fluctuation due to exciton-phonon interactions was maintained in the quantum dots for over 10 ps. This long-time correlation is caused by the modification of the phonon coupling distribution.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2014
Document type:
Article
Affiliation country:
Japón