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AIP conference proceedings

One-dimensional giant dipole atoms

Munir Hasan Nayfeh, Dong-Yong Yao, Y. Ying, David Carl Humm, Kwan Ng, T. Sherlock

Published Jan 1, 1986• 4 citations
Publisher

Abstract

An external dc electric field imposed on highly excited atomic hydrogen is used to construct nearly one‐dimensional atoms which have enormous dipole moments and whose electric distribution is highly extended along the field. As the external field strength rises, the highly excited hydrogen atoms become less and less hydrogenetic. (AIP)
DOI
10.1063/1.35746

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The pseudoseparation of the center of mass and relative motion of a hydrogen atom in crossed electric and magnetic fields led to a theoretical prediction of highly extended states localized in the outer potential well. These states correspond to an almost macroscopic separation between a proton and an electron, and give rise to giant dipole moments. In the present work we describe a simple, experimentally feasible, scheme for the preparation of a hydrogen atom in a superposition of such states. The preparation scheme is based on a two-step switching on of an external electric field, in the course of which the relative motion is trapped in the outer well. On the basis of classical simulations we suggest the experimental parameters at which trapping is achieved extremely efficiently.