Giant density fluctuations in locally hyperuniform states

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• Sara Del Cengio (Massachusetts Institute of Technology)
• Tuesday 04 February 2025, 13:00-14:00
• Center for Mathematical Sciences, Lecture room MR4.

If you have a question about this talk, please contact Sarah Loos.

Deviations from the central limit theorem in nonequilibrium states of matter can follow divergent paths. While ordered active matter is notoriously characterized by giant density fluctuations, the onset of irreversibility through a nonequilibrium absorbing phase transition can suppress these fluctuations, resulting in hyperuniform states. In this work, we introduce a minimal model to study the interplay between these two seemingly incompatible phenomena. We demonstrate that when nematic order and an absorbing phase transition occur simultaneously, the resulting density fluctuations exhibit a novel crossover between enhancement and suppression, emerging at different length scales.

This talk is part of the DAMTP Statistical Physics and Soft Matter Seminar series.

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• All CMS events
• Center for Mathematical Sciences, Lecture room MR4
• DAMTP Statistical Physics and Soft Matter Seminar
• Soft Matter
• bld31

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