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Testing the steady-state fluctuation relation in the solar photospheric convection

Journal
Date Issued
2020
Author(s)
•
•
Giovannelli L.
•
Berrilli F.
•
Del Moro D.
•
Giannattasio F.
•
Penza V.
•
Calchetti D.
DOI
Abstract
The turbulent thermal convection on the Sun is an example of an irreversible non-equilibrium phenomenon in a quasi-steady state characterized by a continuous entropy production rate. Here, the statistical features of a proxy of the local entropy production rate, in solar quiet regions at different timescales, are investigated and compared with the symmetry conjecture of the steady-state fluctuation theorem by Gallavotti and Cohen. Our results show that solar turbulent convection satisfies the symmetries predicted by the fluctuation relation of the Gallavotti and Cohen theorem at a local level.
Volume
22
Issue
7
Uri
Url
Issn Identifier
1099-4300
Rights
open.access
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