Exciton-exciton interactions in highly excited quantum dots in a magnetic field

被引：63

作者：

Wojs, A ^{[1
]}

Hawrylak, P ^{[1
]}

机构：

[1] WROCLAW TECH UNIV,INST PHYS,PL-50370 WROCLAW,POLAND

来源：

SOLID STATE COMMUNICATIONS | 1996年 / 100卷 / 07期

关键词：

semiconductors; quantum dots; excitons;

D O I：

10.1016/0038-1098(96)00403-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study the effect of interactions of many electrons and holes on optical properties of quantum dots in a magnetic field. The degeneracies in the electronic structure of these artificial atoms lead to a remarkable dependence of the absorption/emission spectrum on density of excitons. This is explained in terms of remnants of hidden symmetries leading to coherent many-exciton states of weakly interacting excitons and bi-excitons. This is illustrated by detailed numerical results for highly excited lens-shaped InGaAs self-assembled dots. Copyright (C) 1996 Elsevier Science Ltd

引用

页码：487 / 491

页数：5

共 21 条

[1] N-ELECTRON GROUND-STATE ENERGIES OF A QUANTUM-DOT IN MAGNETIC-FIELD
ASHOORI, RC
STORMER, HL
WEINER, JS
PFEIFFER, LN
BALDWIN, KW
WEST, KW
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (04) : 613 - 616
[2] ELECTRON-HOLE TRANSITIONS BETWEEN STATES WITH NONZERO ANGULAR MOMENTA IN THE MAGNETOLUMINESCENCE OF QUANTUM DOTS
BAYER, M
SCHMIDT, A
FORCHEL, A
FALLER, F
REINECKE, TL
KNIPP, PA
DREMIN, AA
KULAKOVSKII, VD
[J]. PHYSICAL REVIEW LETTERS, 1995, 74 (17) : 3439 - 3442
[3] QUANTUM INFORMATION AND COMPUTATION
BENNETT, CH
[J]. PHYSICS TODAY, 1995, 48 (10) : 24 - 30
[4] BOCKELMANN U, IN PRESS SOLID STATE
[5] EXCITONS AND DEEXCITONS IN A NEUTRAL 2-DIMENSIONAL MAGNETOPLASMA WITH A STRONG POPULATION-INVERSION
BYCHKOV, YA
RASHBA, EI
[J]. PHYSICAL REVIEW B, 1991, 44 (12): : 6212 - 6219
[6] Chakraborty T., 1992, Comments on Condensed Matter Physics, V16, P35
[7] SPECTROSCOPY OF QUANTUM LEVELS IN CHARGE-TUNABLE INGAAS QUANTUM DOTS
DREXLER, H
LEONARD, D
HANSEN, W
KOTTHAUS, JP
PETROFF, PM
[J]. PHYSICAL REVIEW LETTERS, 1994, 73 (16) : 2252 - 2255
[8] INAS/GAAS QUANTUM DOTS - RADIATIVE RECOMBINATION FROM ZERO-DIMENSIONAL STATES
GRUNDMANN, M
LEDENTSOV, NN
HEITZ, R
ECKEY, L
CHRISTEN, J
BOHRER, J
BIMBERG, D
RUVIMOV, SS
WERNER, P
RICHTER, U
HEYDENREICH, J
USTINOV, VM
EGOROV, AY
ZHUKOV, AE
KOPEV, PS
ALFEROV, ZI
[J]. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1995, 188 (01): : 249 - 258
[9] ZEEMAN BIFURCATION OF QUANTUM-DOT SPECTRA
HANSEN, W
SMITH, TP
LEE, KY
BRUM, JA
KNOEDLER, CM
HONG, JM
KERN, DP
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (18) : 2168 - 2171
[10] SINGLE-ELECTRON CAPACITANCE SPECTROSCOPY OF FEW-ELECTRON ARTIFICIAL ATOMS IN A MAGNETIC-FIELD - THEORY AND EXPERIMENT
HAWRYLAK, P
[J]. PHYSICAL REVIEW LETTERS, 1993, 71 (20) : 3347 - 3350

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