Measurement of a Heavy-Hole Hyperfine Interaction in InGaAs Quantum Dots Using Resonance Fluorescence

被引：93

作者：

Fallahi, P. ^{[1
]}

Yilmaz, S. T. ^{[1
]}

Imamoglu, A. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Inst Quantum Elect, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 25期

基金：

瑞士国家科学基金会;

关键词：

DRIVEN COHERENT OSCILLATIONS; SINGLE-ELECTRON; SPIN; SEMICONDUCTOR; MANIPULATION;

D O I：

10.1103/PhysRevLett.105.257402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We measure the strength and the sign of hyperfine interaction of a heavy hole with nuclear spins in single self-assembled quantum dots. Our experiments utilize the locking of a quantum dot resonance to an incident laser frequency to generate nuclear spin polarization. By monitoring the resulting Overhauser shift of optical transitions that are split either by electron or exciton Zeeman energy with respect to the locked transition using resonance fluorescence, we find that the ratio of the heavy-hole and electron hyperfine interactions is -0.09 +/- 0.02 in three quantum dots. Since hyperfine interactions constitute the principal decoherence source for spin qubits, we expect our results to be important for efforts aimed at using heavy-hole spins in quantum information processing.

引用

页数：4

共 24 条

[1] Quantum-dot spin-state preparation with near-unity fidelity [J].

Atatüre, M ;

Dreiser, J ;

Badolato, A ;

Högele, A ;

Karrai, K ;

Imamoglu, A .

SCIENCE, 2006, 312 (5773) :551-553

[2] A Coherent Single-Hole Spin in a Semiconductor [J].

Brunner, Daniel ;

Gerardot, Brian D. ;

Dalgarno, Paul A. ;

Wuest, Gunter ;

Karrai, Khaled ;

Stoltz, Nick G. ;

Petroff, Pierre M. ;

Warburton, Richard J. .

SCIENCE, 2009, 325 (5936) :70-72

[3]

CHEKHOVICH EA, ARXIV10084604

[4] Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics [J].

Coish, WA ;

Loss, D .

PHYSICAL REVIEW B, 2004, 70 (19) :1-21

[5] Electron and hole spin cooling efficiency in InAs quantum dots: The role of nuclear field [J].

Desfonds, P. ;

Eble, B. ;

Fras, F. ;

Testelin, C. ;

Bernardot, F. ;

Chamarro, M. ;

Urbaszek, B. ;

Amand, T. ;

Marie, X. ;

Gerard, J. M. ;

Thierry-Mieg, V. ;

Miard, A. ;

Lemaitre, A. .

APPLIED PHYSICS LETTERS, 2010, 96 (17)

[6] Optical investigations of quantum dot spin dynamics as a function of external electric and magnetic fields [J].

Dreiser, Jan ;

Atatuere, Mete ;

Galland, Christophe ;

Mueller, Tina ;

Badolato, Antonio ;

Imamoglu, Atac .

PHYSICAL REVIEW B, 2008, 77 (07)

[7] Spin decoherence of a heavy hole coupled to nuclear spins in a quantum dot [J].

Fischer, Jan ;

Coish, W. A. ;

Bulaev, D. V. ;

Loss, Daniel .

PHYSICAL REVIEW B, 2008, 78 (15)

[8] Resonantly driven coherent oscillations in a solid-state quantum emitter [J].

Flagg, E. B. ;

Muller, A. ;

Robertson, J. W. ;

Founta, S. ;

Deppe, D. G. ;

Xiao, M. ;

Ma, W. ;

Salamo, G. J. ;

Shih, C. K. .

NATURE PHYSICS, 2009, 5 (03) :203-207

[9] Optical pumping of a single hole spin in a quantum dot [J].

Gerardot, Brian D. ;

Brunner, Daniel ;

Dalgarno, Paul A. ;

Ohberg, Patrik ;

Seidl, Stefan ;

Kroner, Martin ;

Karrai, Khaled ;

Stoltz, Nick G. ;

Petroff, Pierre M. ;

Warburton, Richard J. .

NATURE, 2008, 451 (7177) :441-444

[10] Spins in few-electron quantum dots [J].

Hanson, R. ;

Kouwenhoven, L. P. ;

Petta, J. R. ;

Tarucha, S. ;

Vandersypen, L. M. K. .

REVIEWS OF MODERN PHYSICS, 2007, 79 (04) :1217-1265

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