Continuous absorption background and decoherence in quantum dots

被引:145
作者
Vasanelli, A [1 ]
Ferreira, R [1 ]
Bastard, G [1 ]
机构
[1] Ecole Normale Super, Phys Mat Condensee Lab, F-75005 Paris, France
关键词
D O I
10.1103/PhysRevLett.89.216804
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider theoretically the role of crossed transitions on the interband optical properties of quantum dots. These transitions, which involve one bound state and one delocalized state, are inherent to the joint nature of the valence-to-conduction density of states in quantum dots. We show that they play a crucial role both on the interband absorption and on the broadening of the quantum dot lines.
引用
收藏
页数:4
相关论文
共 8 条
[1]   Quantum information processing with semiconductor macroatoms [J].
Biolatti, E ;
Iotti, RC ;
Zanardi, P ;
Rossi, F .
PHYSICAL REVIEW LETTERS, 2000, 85 (26) :5647-5650
[2]   Phonon-assisted capture and intradot Auger relaxation in quantum dots [J].
Ferreira, R ;
Bastard, G .
APPLIED PHYSICS LETTERS, 1999, 74 (19) :2818-2820
[3]   Charged and neutral exciton complexes in individual self-assembled In(Ga)As quantum dots -: art. no. 073307 [J].
Finley, JJ ;
Ashmore, AD ;
Lemaître, A ;
Mowbray, DJ ;
Skolnick, MS ;
Itskevich, IE ;
Maksym, PA ;
Hopkinson, M ;
Krauss, TF .
PHYSICAL REVIEW B, 2001, 63 (07)
[4]   Excitonic absorption in a quantum dot [J].
Hawrylak, P ;
Narvaez, GA ;
Bayer, M ;
Forchel, A .
PHYSICAL REVIEW LETTERS, 2000, 85 (02) :389-392
[5]   Photoluminescence up-conversion in single self-assembled InAs/GaAs quantum dots -: art. no. 207401 [J].
Kammerer, C ;
Cassabois, G ;
Voisin, C ;
Delalande, C ;
Roussignol, P ;
Gérard, JM .
PHYSICAL REVIEW LETTERS, 2001, 87 (20) :207401-1
[6]   Efficient acoustic phonon broadening in single self-assembled InAs/GaAs quantum dots -: art. no. 033313 [J].
Kammerer, C ;
Cassabois, G ;
Voisin, C ;
Delalande, C ;
Roussignol, P ;
Lemaître, A ;
Gérard, JM .
PHYSICAL REVIEW B, 2002, 65 (03) :333131-333134
[7]   Efficient carrier relaxation mechanism in InGaAs GaAs self-assembled quantum dots based on the existence of continuum states [J].
Toda, Y ;
Moriwaki, O ;
Nishioka, M ;
Arakawa, Y .
PHYSICAL REVIEW LETTERS, 1999, 82 (20) :4114-4117
[8]   Excitonic polarons in semiconductor quantum dots [J].
Verzelen, O ;
Ferreira, R ;
Bastard, G .
PHYSICAL REVIEW LETTERS, 2002, 88 (14) :4