Ramsey fringes in an electric-field-tunable quantum dot system

被引：46

作者：

Stufler, S

Ester, P

Zrenner, A

Bichler, M

机构：

[1] Univ Paderborn, D-33098 Paderborn, Germany

[2] Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 03期

关键词：

Electric excitation - Electric fields - Gallium alloys - Quantum theory - Spectrum analyzers - Transition metal alloys;

D O I：

10.1103/PhysRevLett.96.037402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on Ramsey fringes measured in a single InGaAs/GaAs quantum dot two-level system. We are able to control the transition energy of the system by Stark effect tuning. In combination with double pulse excitation this allows for a voltage controlled preparation of the phase and the occupancy of the two-level system. For long pulse delay times we observe extremely narrow fringes with spectral width below the homogeneous linewidth of the system. Implications on quantum information processing are discussed.

引用

收藏

页数：4

相关论文

共 17 条

[1]

Allen L., 1975, OPTICAL RESONANCE 2

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

Besombes, L ;

Baumberg, JJ ;

Motohisa, J .

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

[3] 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

[4] Rabi oscillations in the excitonic ground-state transition of InGaAs quantum dots [J].

Borri, P ;

Langbein, W ;

Schneider, S ;

Woggon, U ;

Sellin, RL ;

Ouyang, D ;

Bimberg, D .

PHYSICAL REVIEW B, 2002, 66 (08) :1-4

[5]

BOUWMEESTER D, 2000, PHYS QUANTUM INFORMA

[6] 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)

[7] Interplay of Rabi oscillations and quantum interference in semiconductor quantum dots [J].

Htoon, H ;

Takagahara, T ;

Kulik, D ;

Baklenov, O ;

Holmes, AL ;

Shih, CK .

PHYSICAL REVIEW LETTERS, 2002, 88 (08) :87401/1-87401/4

[8] Exciton Rabi oscillation in a single quantum dot [J].

Kamada, H ;

Gotoh, H ;

Temmyo, J ;

Takagahara, T ;

Ando, H .

PHYSICAL REVIEW LETTERS, 2001, 87 (24) :246401-1

[9] An all-optical quantum gate in a semiconductor quantum dot [J].

Li, XQ ;

Wu, YW ;

Steel, D ;

Gammon, D ;

Stievater, TH ;

Katzer, DS ;

Park, D ;

Piermarocchi, C ;

Sham, LJ .

SCIENCE, 2003, 301 (5634) :809-811

[10] Determination of anisotropic dipole moments in self-assembled quantum dots using Rabi oscillations [J].

Muller, A ;

Wang, QQ ;

Bianucci, P ;

Shih, CK ;

Xue, QK .

APPLIED PHYSICS LETTERS, 2004, 84 (06) :981-983