Exciton Rabi oscillation in single pair of InAs/GaAs coupled quantum dots

被引：4

作者：

Goshima, Keishiro

Komori, Kazuhiro

Yamauchi, Shohgo

Morohashi, Isao

Sugaya, Takeyoshi

机构：

[1] Natl Inst Adv Ind Sci & Technol, AIST, Tsukuba, Ibaraki 3058568, Japan

[2] Japan Sci & Techol Corp JST, CREST, Tsukuba, Ibaraki 3050032, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2007年 / 46卷 / 4B期

关键词：

coupled quantum dots; InAs; photoluminescence; photoluminescence excitation; Rabi oscillation; transition dipole moment;

D O I：

10.1143/JJAP.46.2626

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We measured the optical properties of exciton states and the exciton Rabi oscillation in a single pair of coupled quantum dots (CQDs). We compared the transition dipole moments of exciton in a single quantum dot (SQD) and CQDs. The transition dipole moment estimated from the experimental result in a single pair of CQDs was 72 D, which is larger than that for SQD. We concluded that the large transition dipole moment is attributed to the large coherence volume in CQDs.

引用

页码：2626 / 2628

页数：3

共 23 条

[1] Exciton lifetime in InAs/GaAs quantum dot molecules [J].

Bardot, C ;

Schwab, M ;

Bayer, M ;

Fafard, S ;

Wasilewski, Z ;

Hawrylak, P .

PHYSICAL REVIEW B, 2005, 72 (03)

[2] CONDITIONAL QUANTUM DYNAMICS AND LOGIC GATES [J].

BARENCO, A ;

DEUTSCH, D ;

EKERT, A ;

JOZSA, R .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4083-4086

[3] ELEMENTARY GATES FOR QUANTUM COMPUTATION [J].

BARENCO, A ;

BENNETT, CH ;

CLEVE, R ;

DIVINCENZO, DP ;

MARGOLUS, N ;

SHOR, P ;

SLEATOR, T ;

SMOLIN, JA ;

WEINFURTER, H .

PHYSICAL REVIEW A, 1995, 52 (05) :3457-3467

[4] Coherent spectroscopy of optically gated charged single InGaAs quantum dots [J].

Besombes, L ;

Baumberg, JJ ;

Motohisa, J .

PHYSICAL REVIEW LETTERS, 2003, 90 (25) :4

[5] Broken symmetry and quantum entanglement of an exciton in InxGa1-xAs/GaAs quantum dot molecules -: art. no. 075325 [J].

Bester, G ;

Zunger, A ;

Shumway, J .

PHYSICAL REVIEW B, 2005, 71 (07)

[6]

Bimberg D., 2001, QUANTUM DOT HETEROST

[7] Quantum information processing with semiconductor macroatoms [J].

Biolatti, E ;

Iotti, RC ;

Zanardi, P ;

Rossi, F .

PHYSICAL REVIEW LETTERS, 2000, 85 (26) :5647-5650

[8] 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

[9] 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)

[10] Optical studies of single quantum dots [J].

Gammon, D ;

Steel, DG .

PHYSICS TODAY, 2002, 55 (10) :36-41

← 1 2 3 →