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Strong "quantum" chaos in the global ballooning mode spectrum of three-dimensional plasmas

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dc.contributor.authorDewar, Robert
dc.contributor.authorCuthbert, P
dc.contributor.authorBall, Rowena
dc.date.accessioned2009-10-27T03:47:18Zen_US
dc.date.accessioned2010-12-20T06:05:53Z
dc.date.available2009-10-27T03:47:18Zen_US
dc.date.available2010-12-20T06:05:53Z
dc.date.issued2001en_US
dc.date.updated2015-12-08T09:01:26Z
dc.description.abstractThe spectrum of ideal magnetohydrodynamic (MHD) pressure-driven (ballooning) modes in strongly nonaxisymmetric toroidal systems is difficult to analyze numerically owing to the singular nature of ideal MHD caused by lack of an inherent scale length. In this paper, ideal MHD is regularized by using a k-space cutoff, making the ray tracing for the WKB ballooning formalism a chaotic Hamiltonian billiard problem. The minimum width of the toroidal Fourier spectrum needed for resolving toroidally localized ballooning modes with a global eigenvalue code is estimated from the Weyl formula. This phase-space-volume estimation method is applied to two stellarator cases.
dc.format4 pages
dc.identifier.citationPhysical Review Letters 86.11 (2001): 2321-2324
dc.identifier.issn0031-9007en_US
dc.identifier.issn1079-7114en_US
dc.identifier.urihttp://hdl.handle.net/10440/971en_US
dc.identifier.urihttp://digitalcollections.anu.edu.au/handle/10440/971
dc.publisherAmerican Physical Society
dc.rightshttp://www.sherpa.ac.uk/romeo/index.php "Author can archive pre-print (ie pre-refereeing) … post-print (ie final draft post-refereeing) … [and] publisher's version/PDF. Link to publisher version … [and] Copyright notice required. Publisher's version/PDF can be used on … employers web site." - from SHERPA/RoMEO site (as at 25/02/10). ©2001 The American Physical Society
dc.sourcePhysical Review Letters
dc.source.urihttp://prola.aps.org/abstract/PRL/v86/i11/p2321_1en_US
dc.subjectKeywords: Chaos theory; Eigenvalues and eigenfunctions; Estimation; Fourier transform infrared spectroscopy; Hamiltonians; Magnetohydrodynamics; Phase space methods; Quantum optics; Global ballooning; Quantum chaos; Magnetoplasma
dc.titleStrong "quantum" chaos in the global ballooning mode spectrum of three-dimensional plasmas
dc.typeJournal article
local.bibliographicCitation.issue11
local.bibliographicCitation.lastpage2324
local.bibliographicCitation.startpage2321
local.contributor.affiliationDewar, Robert, Research School of Physical Sciences and Engineering, Plasma Research Laboratoryen_US
local.contributor.affiliationCuthbert, P, Research School of Physical Sciences and Engineering, Department of Theoretical Physicsen_US
local.contributor.affiliationBall, Rowena, Research School of Physical Sciences and Engineering, Department of Theoretical Physicsen_US
local.contributor.authoruidu8203580en_US
local.contributor.authoruidU960298en_US
local.contributor.authoruidu9901683en_US
local.identifier.absfor020204en_US
local.identifier.ariespublicationu4167262xPUB100en_US
local.identifier.citationvolume86
local.identifier.doi10.1103/PhysRevLett.86.2321
local.identifier.scopusID2-s2.0-0035848119
local.type.statusPublished Versionen_US

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