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A fine-grained distinction of coarse graining

Morita, Kohei (2023) A fine-grained distinction of coarse graining. [Preprint]

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Abstract

This paper aims to distinguish two main types of coarse graining, and reveal the relationship between the notions of coarse graining and emergence. In physics, some forms of coarse graining seem to be indispensable to show a physical property, and the other merely changes our descriptions of the system. To clarify the notion of coarse graining, this article investigates the cases of the renormalization group method and irreversibility, both of which have been important topics in philosophy of science, and the case of the rigid body in classical mechanics, which is an elementary case including coarse graining. The case studies reveal the distinction between substantial and mere coarse-graining. This distinction clarifies the relationships between the notions of coarse graining and emergence and further provides some implications for the issues about emergence.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Morita, Kohei0000-0002-1280-0713
Additional Information: Forthcoming in European Journal for Philosophy of Science
Keywords: Coarse graining, Emergence, Idealization, Renormalization group method, Irreversibility, Rigid body
Subjects: Specific Sciences > Physics > Classical Physics
General Issues > Models and Idealization
Specific Sciences > Physics
Specific Sciences > Physics > Statistical Mechanics/Thermodynamics
Depositing User: Dr. Kohei Morita
Date Deposited: 22 Feb 2023 14:16
Last Modified: 22 Feb 2023 14:16
Item ID: 21711
Journal or Publication Title: European Journal for Philosophy of Science
Publisher: Springer
Subjects: Specific Sciences > Physics > Classical Physics
General Issues > Models and Idealization
Specific Sciences > Physics
Specific Sciences > Physics > Statistical Mechanics/Thermodynamics
Date: 2023
ISSN: 1879-4912
URI: https://philsci-archive.pitt.edu/id/eprint/21711

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