Normal forms, universal scaling functions, and extending the validity of the RG

Fuente: arXiv
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Main Authors: Sethna, James P., Hathcock, David, Kent-Dobias, Jaron, Raju, Archishman
Format: Preprint
Published: 2023
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author Sethna, James P.
Hathcock, David
Kent-Dobias, Jaron
Raju, Archishman
author_facet Sethna, James P.
Hathcock, David
Kent-Dobias, Jaron
Raju, Archishman
contents Our community has a deep and sophisticated understanding of phase transitions and their universal scaling functions. We outline and advocate an ambitious program to use this understanding as an anchor for describing the surrounding phases. We explain how to use normal form theory to write universal scaling functions in systems where the renormalization-group flows cannot be linearized. We use the 2d Ising model to demonstrate how to calculate high-precision implementations of universal scaling functions, and how to extend them into a complete description of the surrounding phases. We discuss prospects and challenges involved into extending these early successes to the many other systems where the RG has successfully described emergent scale invariance, making them invaluable tools for engineers, biologists, and social scientists studying complex systems.
format Preprint
id arxiv_https___arxiv_org_abs_2304_00105
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Normal forms, universal scaling functions, and extending the validity of the RG
Sethna, James P.
Hathcock, David
Kent-Dobias, Jaron
Raju, Archishman
Statistical Mechanics
Our community has a deep and sophisticated understanding of phase transitions and their universal scaling functions. We outline and advocate an ambitious program to use this understanding as an anchor for describing the surrounding phases. We explain how to use normal form theory to write universal scaling functions in systems where the renormalization-group flows cannot be linearized. We use the 2d Ising model to demonstrate how to calculate high-precision implementations of universal scaling functions, and how to extend them into a complete description of the surrounding phases. We discuss prospects and challenges involved into extending these early successes to the many other systems where the RG has successfully described emergent scale invariance, making them invaluable tools for engineers, biologists, and social scientists studying complex systems.
title Normal forms, universal scaling functions, and extending the validity of the RG
topic Statistical Mechanics
url https://arxiv.org/abs/2304.00105