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QUANTUM MEASUREMENT AND CHARGE DENSITY OSCILLATIONS IN DOUBLE QUANTUM DOTS

Departamento de Física Básica, Universidad de La Laguna, 38204 La Laguna, Tenerife, Spain

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and

Departamento de Física Básica, Universidad de La Laguna, 38204 La Laguna, Tenerife, Spain

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https://doi.org/10.1142/S021974990800389XCited by:0 (Source: Crossref)

Abstract

In this work, we have studied the post-measurement dynamics of several electrons in a double quantum dot system using a new method of calculation. We have solved the effective-mass non-linear Schrödinger equation for two electron wave packets in a double quantum well taking into account the different number of projected electrons in each quantum well after an observation. It is found the existence of a critical density that reduces strongly the tunneling dynamics between both quantum wells. In addition, we have shown the possibility of having a new kind of electromagnetic radiation emerging from a semiconductor device after a quantum observation.

Keywords:

AMSC: 03.65.Ta, 03.65.Xp, 03.67.-a

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Journal cover image

Vol. 06, No. supp01

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History

Received 27 February 2008

Keywords