Manipulation of a single charge in a double quantum dot

被引：379

作者：

Petta, JR ^{[1
]}

Johnson, AC

Marcus, CM

Hanson, MP

Gossard, AC

机构：

[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 18期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.186802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We manipulate a single electron in a fully tunable double quantum dot using microwave excitation. Under resonant conditions, microwaves drive transitions between the (1,0) and (0,1) charge states of the double dot. Local quantum point contact charge detectors enable a direct measurement of the photon-induced change in occupancy of the charge states. From charge sensing measurements, we find T(1) similar to 16 ns and a lower bound estimate for T(2)(*) of 400 ps for the charge two-level system.

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页码：186802 / 1

页数：4

相关论文

共 26 条

[1]

Abragam A, 1983, INT SERIES MONOGRAPH, V32

[2]

*ANR CO, MOD K251

[3] Photon-assisted transport through ultrasmall quantum dots: Influence of intradot transitions [J].

Brune, P ;

Bruder, C ;

Schoeller, H .

PHYSICAL REVIEW B, 1997, 56 (08) :4730-4736

[4] Addition spectrum of a lateral dot from Coulomb and spin-blockade spectroscopy [J].

Ciorga, M ;

Sachrajda, AS ;

Hawrylak, P ;

Gould, C ;

Zawadzki, P ;

Jullian, S ;

Feng, Y ;

Wasilewski, Z .

PHYSICAL REVIEW B, 2000, 61 (24) :16315-16318

[5] Differential charge sensing and charge delocalization in a tunable double quantum dot [J].

DiCarlo, L ;

Lynch, HJ ;

Johnson, AC ;

Childress, LI ;

Crockett, K ;

Marcus, CM ;

Hanson, MP ;

Gossard, AC .

PHYSICAL REVIEW LETTERS, 2004, 92 (22) :226801-1

[6] Few-electron quantum dot circuit with integrated charge read out [J].

Elzerman, JM ;

Hanson, R ;

Greidanus, JS ;

van Beveren, LHW ;

De Franceschi, S ;

Vandersypen, LMK ;

Tarucha, S ;

Kouwenhoven, LP .

PHYSICAL REVIEW B, 2003, 67 (16)

[7] MEASUREMENTS OF COULOMB BLOCKADE WITH A NONINVASIVE VOLTAGE PROBE [J].

FIELD, M ;

SMITH, CG ;

PEPPER, M ;

RITCHIE, DA ;

FROST, JEF ;

JONES, GAC ;

HASKO, DG .

PHYSICAL REVIEW LETTERS, 1993, 70 (09) :1311-1314

[8] Allowed and forbidden transitions in artificial hydrogen and helium atoms [J].

Fujisawa, T ;

Austing, DG ;

Tokura, Y ;

Hirayama, Y ;

Tarucha, S .

NATURE, 2002, 419 (6904) :278-281

[9] Photon assisted tunnelling in single and coupled quantum dot systems [J].

Fujisawa, T ;

Tarucha, S .

SUPERLATTICES AND MICROSTRUCTURES, 1997, 21 (02) :247-254

[10] Coherent manipulation of electronic states in a double quantum dot [J].

Hayashi, T ;

Fujisawa, T ;

Cheong, HD ;

Jeong, YH ;

Hirayama, Y .

PHYSICAL REVIEW LETTERS, 2003, 91 (22)