Calculation of transport coefficient profiles in modulation experiments as an inverse problem

D.F. Escande, F. Sattin

Research output: Contribution to journalArticle


The calculation of transport profiles from experimental measurements belongs in the category of inverse problems which are known to come with issues of ill-conditioning or singularity. A reformulation of the calculation, the matricial approach, is proposed for periodically modulated experiments, within the context of the standard advection-diffusion model where these issues are related to the vanishing of the determinant of a 2 × 2 matrix. This sheds light on the accuracy of calculations with transport codes, and provides a path for a more precise assessment of the profiles and of the related uncertainty. © 2012 American Physical Society.
Original languageEnglish
Pages (from-to)-
JournalPhysical Review Letters
Issue number12
Publication statusPublished - 23 Mar 2012
Externally publishedYes


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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