Long-Time Correlation in Non-Markovian Dephasing of an Exciton-Phonon System in InAs Quantum Dots

被引：17

作者：

Tahara, H. ^{[1
]}

Ogawa, Y. ^{[1
]}

Minami, F. ^{[1
]}

Akahane, K. ^{[2
]}

Sasaki, M. ^{[2
]}

机构：

[1] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan

[2] Natl Inst Informat & Commun Technol, Koganei, Tokyo 1848795, Japan

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 14期

关键词：

WELLS; RELAXATION; DYNAMICS; GAAS;

D O I：

10.1103/PhysRevLett.112.147404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：5

共 37 条

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