MEASURING THE ELECTRONS CHARGE AND THE FINE-STRUCTURE CONSTANT BY COUNTING ELECTRONS ON A CAPACITOR

被引：49

作者：

WILLIAMS, ER ^{[1
]}

GHOSH, RN ^{[1
]}

MARTINIS, JM ^{[1
]}

机构：

[1] NBS, DIV ELECTROMAGNET TECHNOL, BOULDER, CO 80303 USA

来源：

JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY | 1992年 / 97卷 / 02期

关键词：

CALCULABLE CAPACITOR; COULOMB BLOCKADE; ELECTRON CHARGE; ELECTRON COUNTING; FINE-STRUCTURE CONSTANT; SINGLE ELECTRON TUNNELING;

D O I：

10.6028/jres.097.010

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The charge of the electron can be determined by simply placing a known number of electrons on one electrode of a capacitor and measuring the voltage, V(s), across the capacitor. If V(s) is measured in terms of the Josephson volt and the capacitor is measured in SI units then the fine-structure constant is the quantity determined. Recent developments involving single electron tunneling, SET, have shown how to count the electrons as well as how to make an electrometer with sufficient sensitivity to measure the charge.

引用

页码：299 / 304

页数：6

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