Surface-acoustic-wave single-electron interferometry

被引：22

作者：

Rodriquez, R

Oi, DKL

Kataoka, M

Barnes, CHW

Ohshima, T

Ekert, AK

机构：

[1] Univ Cambridge, Ctr Quantum Computat, DAMTP, Cambridge CB3 0WA, England

[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[3] Fujitsu Labs Ltd, Hayes UB4 8FE, Middx, England

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.72.085329

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose an experiment to observe interference of a single electron as it is transported along two parallel quasi-one-dimensional channels trapped in a single minimum of a traveling periodic electric field. The experimental device is a modification of the surface-acoustic-wave-based quantum processor. Interference is achieved by creating a superposition of spatial wave functions between the two channels and inducing a relative phase shift via either a transverse electric field or a magnetic field. The interference can be used to estimate the decoherence time of an electron in this type of solid-state device.

引用

页数：4

共 23 条

[1] SIGNIFICANCE OF ELECTROMAGNETIC POTENTIALS IN THE QUANTUM THEORY [J].