EXCITON-KLO-PHONON QUANTUM KINETICS - EVIDENCE OF MEMORY EFFECTS IN BULK GAAS

被引：176

作者：

BANYAI, L

THOAI, DBT

REITSAMER, E

HAUG, H

STEINBACH, D

WEHNER, MU

WEGENER, M

MARSCHNER, T

STOLZ, W

机构：

[1] INST PHYS, HO CHI MINH CITY, VIETNAM

[2] UNIV DORTMUND, D-44227 DORTMUND, GERMANY

[3] UNIV MARBURG, WISSENSCH ZENTRUM MAT WISSENSCH, D-35032 MARBURG, GERMANY

[4] UNIV MARBURG, FACHBEREICH PHYS, D-35032 MARBURG, GERMANY

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.75.2188

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Oscillations of the transient four-wave-mixing signal with a period of about 100 fs are observed in bulk GaAs using 14 fs pulses tuned to the exciton resonance at low temperatures. The measurements are explained in terms of the non-Markovian quantum kinetics for electron-hole pairs due to LO-phonon scattering. it is shown that the observed oscillations are evidence for memory effects. The experiments provide a first test of the central ideas of quantum kinetics, in which the effects of quantum coherence and of dissipation are intrinsically connected.

引用

页码：2188 / 2191

页数：4

共 15 条

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