edoc

Measuring the momentum of a nanomechanical oscillator through the use of two tunnel junctions

Doiron, C. B. and Trauzettel, B. and Bruder, C.. (2008) Measuring the momentum of a nanomechanical oscillator through the use of two tunnel junctions. Physical review letters, Vol. 100, H. 2 , 027202, 4 S..

Full text not available from this repository.

Official URL: http://edoc.unibas.ch/dok/A5252818

Downloads: Statistics Overview

Abstract

We propose a way to measure the momentum p of a nanomechanical oscillator. The p detector is based on two tunnel junctions in an Aharonov-Bohm-type setup. One of the tunneling amplitudes depends on the motion of the oscillator, the other one not. Although the coupling between the detector and the oscillator is assumed to be linear in the position x of the oscillator, it turns out that the finite-frequency noise output of the detector will in general contain a term proportional to the momentum spectrum of the oscillator. This is a true quantum phenomenon, which can be realized in practice if the phase of the tunneling amplitude of the detector is tuned by the Aharonov-Bohm flux Phi to a p-sensitive value.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik (Bruder)
UniBasel Contributors:Bruder, Christoph
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Physical Society
ISSN:0031-9007
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:53

Repository Staff Only: item control page