Interaction-free ergodicity-breaking driven by temporally hyperuniform noise

Fuente: arXiv
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Autore principale: Ikeda, Harukuni
Natura: Preprint
Pubblicazione: 2025
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author Ikeda, Harukuni
author_facet Ikeda, Harukuni
contents We show that norm-conserving spin models driven by temporally hyperuniform noise exhibit a sharp ergodicity-breaking transition in the absence of interactions. In the nonergodic phase, the dynamics freeze into configurations determined by the initial condition. Our analysis demonstrates that such interaction-free ergodicity breaking arises generically whenever a global constraint is imposed and the driving noise is class-I hyperuniform, the strongest form in Torquato's classification. The transition can also be interpreted as a condensation of fluctuations into the zero-frequency mode, reminiscent of Bose--Einstein condensation in an ideal gas.
format Preprint
id arxiv_https___arxiv_org_abs_2503_06590
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Interaction-free ergodicity-breaking driven by temporally hyperuniform noise
Ikeda, Harukuni
Statistical Mechanics
Disordered Systems and Neural Networks
We show that norm-conserving spin models driven by temporally hyperuniform noise exhibit a sharp ergodicity-breaking transition in the absence of interactions. In the nonergodic phase, the dynamics freeze into configurations determined by the initial condition. Our analysis demonstrates that such interaction-free ergodicity breaking arises generically whenever a global constraint is imposed and the driving noise is class-I hyperuniform, the strongest form in Torquato's classification. The transition can also be interpreted as a condensation of fluctuations into the zero-frequency mode, reminiscent of Bose--Einstein condensation in an ideal gas.
title Interaction-free ergodicity-breaking driven by temporally hyperuniform noise
topic Statistical Mechanics
Disordered Systems and Neural Networks
url https://arxiv.org/abs/2503.06590