Counting statistics of single electron transport in a quantum dot

被引：465

作者：

Gustavsson, S ^{[1
]}

Leturcq, R

Simovic, B

Schleser, R

Ihn, T

Studerus, P

Ensslin, K

Driscoll, DC

Gossard, AC

机构：

[1] ETH, Solid State Phys Lab, CH-8093 Zurich, Switzerland

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

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.96.076605

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the full counting statistics of current fluctuations in a semiconductor quantum dot (QD) by real-time detection of single electron tunneling with a quantum point contact. This method gives direct access to the distribution function of current fluctuations. Suppression of the second moment (related to the shot noise) and the third moment (related to the asymmetry of the distribution) in a tunable semiconductor QD is demonstrated experimentally. With this method we demonstrate the ability to measure very low current and noise levels.

引用

页数：4

共 30 条

[1] Full counting statistics of charge transfer in Coulomb blockade systems [J].

Bagrets, DA ;

Nazarov, YV .

PHYSICAL REVIEW B, 2003, 67 (08)

[2] Full counting statistics of super-Poissonian shot noise in multilevel quantum dots [J].

Belzig, W .

PHYSICAL REVIEW B, 2005, 71 (16)

[3] SHOT-NOISE SUPPRESSION IN THE SINGLE-ELECTRON TUNNELING REGIME [J].

BIRK, H ;

DEJONG, MJM ;

SCHONENBERGER, C .

PHYSICAL REVIEW LETTERS, 1995, 75 (08) :1610-1613

[4] Shot noise in mesoscopic conductors [J].

Blanter, YM ;

Büttiker, M .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2000, 336 (1-2) :1-166

[5] Measurement of counting statistics of electron transport in a tunnel junction [J].

Bomze, Y ;

Gershon, G ;

Shovkun, D ;

Levitov, LS ;

Reznikov, M .

PHYSICAL REVIEW LETTERS, 2005, 95 (17)

[6] Current measurement by real-time counting of single electrons [J].

Bylander, J ;

Duty, T ;

Delsing, P .

NATURE, 2005, 434 (7031) :361-364

[7] Direct observation of a fractional charge [J].

dePicciotto, R ;

Reznikov, M ;

Heiblum, M ;

Umansky, V ;

Bunin, G ;

Mahalu, D .

NATURE, 1997, 389 (6647) :162-164

[8]

Elzerman JM, 2004, NATURE, V430, P431, DOI 10.1039/nature02693

[9] 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

[10] Electronic properties of nanostructures defined in Ga[Al]As heterostructures by local oxidation [J].

Fuhrer, A ;

Dorn, A ;

Lüscher, S ;

Heinzel, T ;

Ensslin, K ;

Wegscheider, W ;

Bichler, M .

SUPERLATTICES AND MICROSTRUCTURES, 2002, 31 (01) :19-42

← 1 2 3 →