Persistence of giant number fluctuations in glassy states

Determine whether giant number fluctuations, characteristic of active and confluent systems, persist in the glassy regime, and if so, characterize their magnitude and scaling.

Background

Giant number fluctuations are a hallmark of active matter and have been observed in confluent cell monolayers.

Whether these anomalous fluctuations survive the dynamical arrest associated with glass formation remains unresolved, with implications for understanding fluctuations and transport in glassy active matter.

References

Although giant number fluctuation shows up in confluent systems, it is unclear if it can survive in glasses.

— A perspective on active glassy dynamics in biological systems  (2403.06799 - Sadhukhan et al., 2024) in Section 6, Conclusions and future perspectives