Modified two-potential approach to tunneling problems

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dc.creatorGurvitz, S. A.
dc.creatorSemmes, P. B.
dc.creatorNazarewicz, W.
dc.creatorVertse, T.
dc.date2003-02-10
dc.date2004-02-11
dc.date.accessioned2026-07-07T12:37:59Z
dc.date.available2026-07-07T12:37:59Z
dc.descriptionOne-body quantum tunneling to continuum is treated via the two-potential approach, dividing the tunneling potential into external and internal parts. We show that corrections to this approach can be minimized by taking the separation radius inside the interval determined by simple expressions. The resulting two-potential approach reproduces the resonance energy and its width, both for narrow and wide resonances. We also demonstrate that, without losing its accuracy, the two-potential approach can be modified to a form resembling the R-matrix theory, yet without any uncertainties of the latter related to the choice of the matching radius.
dc.description7 two-column pages, 3 figures, extra-explanation added, Phys. Rev. A, in press
dc.identifierhttps://arxiv.org/abs/nucl-th/0302020
dc.identifierhttp://arxiv.org/abs/nucl-th/0302020
dc.identifierPhys.Rev.A69:042705,2004
dc.identifierdoi:10.1103/PhysRevA.69.042705
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218598
dc.subjectNuclear Theory
dc.subjectCondensed Matter
dc.subjectChaotic Dynamics
dc.subjectQuantum Physics
dc.titleModified two-potential approach to tunneling problems
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