Bidirectional Counting of Single Electrons-Reference-Cited by-同舟云学术

Bidirectional Counting of Single Electrons

Published:2006-06-16 Issue:5780 Volume:312 Page:1634-1636
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Fujisawa Toshimasa¹²³⁴,Hayashi Toshiaki¹²³⁴,Tomita Ritsuya¹²³⁴,Hirayama Yoshiro¹²³⁴

Affiliation:

1. NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi 243-0198, Japan.

2. Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan.

3. Solution Oriented Research for Science and Technology (SORST), Japan Science and Technology Agency, 4-1-8 Honmachi, Kawaguchi 331-0012, Japan.

4. Department of Physics, Tohoku University, Sendai, Miyagi 980-8578, Japan.

Abstract

A bidirectional single-electron counting device is demonstrated. Individual electrons flowing in forward and reverse directions through a double quantum dot are detected with a quantum point contact acting as a charge sensor. A comprehensive statistical analysis in the frequency and time domains and of higher order moments of noise reveals antibunching correlation in single-electron transport through the device itself. The device can also be used to investigate current flow in the attoampere range, which cannot be measured by existing current meters.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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