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

被引：92

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

[11] Coherent manipulation of single spins in semiconductors
Hanson, Ronald
Awschalom, David D.
[J]. NATURE, 2008, 453 (7198) : 1043 - 1049
[12] Observation of extremely slow hole spin relaxation in self-assembled quantum dots
Heiss, D.
Schaeck, S.
Huebl, H.
Bichler, M.
Abstreiter, G.
Finley, J. J.
Bulaev, D. V.
Loss, Daniel
[J]. PHYSICAL REVIEW B, 2007, 76 (24)
[13] Driven coherent oscillations of a single electron spin in a quantum dot
Koppens, F. H. L.
Buizert, C.
Tielrooij, K. J.
Vink, I. T.
Nowack, K. C.
Meunier, T.
Kouwenhoven, L. P.
Vandersypen, L. M. K.
[J]. NATURE, 2006, 442 (7104) : 766 - 771
[14] Optical detection of single-electron spin resonance in a quantum dot
Kroner, Martin
Weiss, Kathrina M.
Biedermann, Benjamin
Seidl, Stefan
Manus, Stephan
Holleitner, Alexander W.
Badolato, Antonio
Petroff, Pierre M.
Gerardot, Brian D.
Warburton, Richard J.
Karrai, Khaled
[J]. PHYSICAL REVIEW LETTERS, 2008, 100 (15)
[15] KURTZE H, ARXIV09051586
[16] Confluence of resonant laser excitation and bidirectional quantum-dot nuclear-spin polarization
Latta, C.
Hoegele, A.
Zhao, Y.
Vamivakas, A. N.
Maletinsky, P.
Kroner, M.
Dreiser, J.
Carusotto, I.
Badolato, A.
Schuh, D.
Wegscheider, W.
Atature, M.
Imamoglu, A.
[J]. NATURE PHYSICS, 2009, 5 (10) : 758 - 763
[17] LMAZ STY, 2010, PHYS REV LETT, V105
[18] Direct measurement of spin dynamics in InAs/GaAs quantum dots using time-resolved resonance fluorescence
Lu, C. -Y.
Zhao, Y.
Vamivakas, A. N.
Matthiesen, C.
Falt, S.
Badolato, A.
Atatuere, M.
[J]. PHYSICAL REVIEW B, 2010, 81 (03)
[19] Optically detected coherent spin dynamics of a single electron in a quantum dot
Mikkelsen, M. H.
Berezovsky, J.
Stoltz, N. G.
Coldren, L. A.
Awschalom, D. D.
[J]. NATURE PHYSICS, 2007, 3 (11) : 770 - 773
[20] Coherent manipulation of coupled electron spins in semiconductor quantum dots
Petta, JR
Johnson, AC
Taylor, JM
Laird, EA
Yacoby, A
Lukin, MD
Marcus, CM
Hanson, MP
Gossard, AC
[J]. SCIENCE, 2005, 309 (5744) : 2180 - 2184

← 1 2 3 →