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A New Probe for Coherent Many-Body Dynamics: Nonergodic Molecules in Continuum

Kun, Sergey; Vagov, A V; Chadderton, Lewis; Greiner, W.

Description

We present a simple physical explanation that measurements of the collision cross-sections with pure energy resolution can provide information on the reaction dynamics equivalent to that obtained using real-time methods of femtochemistry. For nuclear collisions, the method provides a time resolution of ∼ 10-21 sec. The method is sensitive enough to distinguish between the different scenarios of rotational dephasing for the highly-excited nuclear molecules, with strongly overlapping resonances,...[Show more]

dc.contributor.authorKun, Sergey
dc.contributor.authorVagov, A V
dc.contributor.authorChadderton, Lewis
dc.contributor.authorGreiner, W.
dc.date.accessioned2015-12-13T22:17:40Z
dc.date.available2015-12-13T22:17:40Z
dc.identifier.issn0218-3013
dc.identifier.urihttp://hdl.handle.net/1885/71261
dc.description.abstractWe present a simple physical explanation that measurements of the collision cross-sections with pure energy resolution can provide information on the reaction dynamics equivalent to that obtained using real-time methods of femtochemistry. For nuclear collisions, the method provides a time resolution of ∼ 10-21 sec. The method is sensitive enough to distinguish between the different scenarios of rotational dephasing for the highly-excited nuclear molecules, with strongly overlapping resonances, formed in 12C + 24Mg scattering. We find that the dephasing is much slower than the intra-molecular energy redistribution. This reveals unusual states - nonergodic molecules in continuum. Anomalously long dephasing times observed in highly-excited polyatomic molecules may reflect this new type of nonergodicity.
dc.publisherWorld Scientific Publishing Company
dc.sourceInternational Journal of Modern Physics E - Nuclear Physics
dc.subjectKeywords: Coherent; Continuum; Dynamics; Molecule; Nonergodic; Slow dephasing; Ultrafast
dc.titleA New Probe for Coherent Many-Body Dynamics: Nonergodic Molecules in Continuum
dc.typeJournal article
local.description.notesImported from ARIES
local.description.refereedYes
local.identifier.citationvolume11
dc.date.issued2002
local.identifier.absfor020201 - Atomic and Molecular Physics
local.identifier.ariespublicationMigratedxPub2632
local.type.statusPublished Version
local.contributor.affiliationKun, Sergey, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationVagov, A V, Westfalische Wilhelms-University
local.contributor.affiliationChadderton, Lewis, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationGreiner, W., Johann Wolfgang Goethe University Frankfurt am Main
local.bibliographicCitation.issue4
local.bibliographicCitation.startpage273
local.bibliographicCitation.lastpage280
local.identifier.doi10.1142/S0218301302000909
dc.date.updated2015-12-11T07:35:47Z
local.identifier.scopusID2-s2.0-0036669434
CollectionsANU Research Publications

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