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The Limited Roles of Autocatalysis and Enantiomeric Cross-Inhibition in Achieving Homochirality in Dilute Systems
KTH, Centres, Nordic Institute for Theoretical Physics NORDITA. Stockholm Univ, SE-10691 Stockholm, Sweden.;AlbaNova Univ Ctr, Dept Astron, Stockholm, Sweden.;JILA, Boulder, CO 80303 USA.;Lab Atmospher & Space Phys, Boulder, CO 80303 USA.;Carnegie Mellon Univ, McWilliams Ctr Cosmol, Pittsburgh, PA 15213 USA..ORCID iD: 0000-0002-7304-021X
2019 (English)In: Origins of life and evolution of the biosphere, ISSN 0169-6149, E-ISSN 1573-0875, Vol. 49, no 1-2, p. 49-60Article in journal (Refereed) Published
Abstract [en]

To understand the effects of fluctuations on achieving homochirality, we employ a Monte-Carlo method where autocatalysis and enantiomeric cross-inhibition, as well as racemization and deracemization reactions are included. The results of earlier work either without autocatalysis or without cross-inhibition are reproduced. Bifurcation diagrams and the dependencies of the number of reaction steps on parameters are studied. In systems with 30,000 molecules, for example, up to a billion reaction steps may be needed to achieve homochirality without autocatalysis.

Place, publisher, year, edition, pages
SPRINGER , 2019. Vol. 49, no 1-2, p. 49-60
Keywords [en]
DNA polymerization, Enantiomeric cross-inhibition, Origin of homochirality, Revision, 1.46
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-257827DOI: 10.1007/s11084-019-09579-4ISI: 000481414300003PubMedID: 31286343Scopus ID: 2-s2.0-85068851650OAI: oai:DiVA.org:kth-257827DiVA, id: diva2:1348958
Note

QC 20190906

Available from: 2019-09-06 Created: 2019-09-06 Last updated: 2019-09-06Bibliographically approved

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Brandenburg, Axel

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