Hidden Order Beyond Hyperuniformity in Critical Absorbing States

Abstract

Disordered hyperuniformity is a description of hidden correlations in point distributions revealed by an anomalous suppression in fluctuations of local density at various coarse-graining length scales. In the absorbing phase of models exhibiting an active-absorbing state transition, this suppression extends up to a hyperuniform length scale that diverges at the critical point. Here, we demonstrate the existence of additional many-body correlations beyond hyperuniformity. These correlations are hidden in the higher moments of the probability distribution of the local density, and extend up to a longer length scale with a faster divergence than the hyperuniform length on approaching the critical point. Our results suggest that a hidden order beyond hyperuniformity may generically be present in complex disordered systems.

arXiv comment5 Pages, 4 figures (Main) + 5 pages 7 figures (SI), Physical Review Letters (in press)

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• Interplay between jamming and MIPS in persistent self-propelling particles
• Unconventional rheological properties in systems of deformable particles
• Geometrical properties of mechanically annealed systems near the jamming transition
• Percolation of systems having hyperuniformity or giant number-fluctuations
• Hyperuniformity in Ashkin-Teller model