Control of vertically coupled InGaAs/GaAs quantum dots with electric fields

被引：131

作者：

Ortner, G ^{[1
]}

Bayer, M

Lyanda-Geller, Y

Reinecke, TL

Kress, A

Reithmaier, JP

Forchel, A

机构：

[1] Univ Dortmund, D-44221 Dortmund, Germany

[2] USN, Res Lab, Washington, DC 20375 USA

[3] Univ Wurzburg, D-97074 Wurzburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.94.157401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Controllable interactions that couple quantum dots are a key requirement in the search for scalable solid state implementations for quantum information technology. From optical studies of excitons and corresponding calculations, we demonstrate that an electric field on vertically coupled pairs of In0.6Ga0.4As/GaAs quantum dots controls the mixing of the exciton states on the two dots and also provides controllable coupling between carriers in the dots.

引用

页码：1 / 4

页数：4

共 23 条

[1] Coupling and entangling of quantum states in quantum dot molecules [J].

Bayer, M ;

Hawrylak, P ;

Hinzer, K ;

Fafard, S ;

Korkusinski, M ;

Wasilewski, ZR ;

Stern, O ;

Forchel, A .

SCIENCE, 2001, 291 (5503) :451-453

[2] Exciton dephasing in quantum dot molecules [J].

Borri, P ;

Langbein, W ;

Woggon, U ;

Schwab, M ;

Bayer, M ;

Fafard, S ;

Wasilewski, Z ;

Hawrylak, P .

PHYSICAL REVIEW LETTERS, 2003, 91 (26) :267401-267401

[3] Ultralong dephasing time in InGaAs quantum dots [J].

Borri, P ;

Langbein, W ;

Schneider, S ;

Woggon, U ;

Sellin, RL ;

Ouyang, D ;

Bimberg, D .

PHYSICAL REVIEW LETTERS, 2001, 87 (15) :157401-157401

[4]

BOUWMEESTER D, 2000, PHYS QUANTUM INFORMA

[5] Spin interactions and switching in vertically tunnel-coupled quantum dots [J].

Burkard, G ;

Seelig, G ;

Loss, D .

PHYSICAL REVIEW B, 2000, 62 (04) :2581-2592

[6]

Elzerman JM, 2004, NATURE, V430, P431, DOI 10.1039/nature02693

[7] Optical excitations of a self-assembled artificial ion [J].

Findeis, F ;

Baier, M ;

Zrenner, A ;

Bichler, M ;

Abstreiter, G ;

Hohenester, U ;

Molinari, E .

PHYSICAL REVIEW B, 2001, 63 (12)

[8] Transient current spectroscopy of a quantum dot in the Coulomb blockade regime [J].

Fujisawa, T ;

Tokura, Y ;

Hirayama, Y .

PHYSICAL REVIEW B, 2001, 63 (08)

[9] Quantum mechanics helps in searching for a needle in a haystack [J].

Grover, LK .

PHYSICAL REVIEW LETTERS, 1997, 79 (02) :325-328

[10] Spin coherence in semiconductor quantum dots [J].

Gupta, JA ;

Awschalom, DD ;

Peng, X ;

Alivisatos, AP .

PHYSICAL REVIEW B, 1999, 59 (16) :10421-10424

← 1 2 3 →