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Discrete Fourier transform in nanostructures using scattering

Leuenberger, M. N. and Flatte, M. E. and Loss, D. and Awschalom, D. D.. (2004) Discrete Fourier transform in nanostructures using scattering. Journal of applied physics, Vol. 95, H. 12. pp. 8167-8171.

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Official URL: http://edoc.unibas.ch/dok/A5254683

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Abstract

In this article, we show that the discrete Fourier transform (DFT) can be performed by scattering a coherent particle or laser beam off an electrically controllable two-dimensional (2D) potential that has the shape of rings or peaks. After encoding the initial vector into the two-dimensional potential by means of electric gates, the Fourier-transformed vector can be read out by detectors surrounding the potential. The wavelength of the laser beam determines the necessary accuracy of the 2D potential, which makes our method very fault-tolerant. Since the time to perform the DFT is much smaller than the clock cycle of today`s computers, our proposed device performs DFTs at the frequency of the computer clock speed.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss)
UniBasel Contributors:Loss, Daniel
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0021-8979
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:54

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