Probe particles in odd active viscoelastic fluids: How activity and dissipation determine linear stability.
Charlie Duclut1,2,3, Stefano Bo3,4, Ruben Lier5,6
1Laboratoire Physique des Cellules et Cancer (PCC), CNRS UMR 168, Institut Curie, Université PSL, Sorbonne Université, 75005 Paris, France.
Physical Review. E
|May 17, 2024
Summary
Odd viscoelastic materials, with fewer symmetries, exhibit unique features. Their activity can cause instabilities in probe particle motion, revealing dynamics dependent on material oddity and activity.
Area of Science:
- Rheology and soft matter physics.
- Exploration of complex fluid dynamics.
Background:
- Odd viscoelastic materials possess fewer symmetries compared to even counterparts, leading to distinct physical properties.
- These materials have garnered significant research interest due to their unique characteristics and potential applications.
Purpose of the Study:
- To investigate the conditions under which the activity of odd viscoelastic fluids induces linear instabilities in probe particle motion.
- To explore how probe particle dynamics are influenced by the oddity and activity of the surrounding viscoelastic medium.
Main Methods:
- Theoretical analysis of probe particle dynamics in odd viscoelastic fluids.
- Mathematical modeling to identify conditions for linear instabilities.
Main Results:
- Established the relationship between fluid activity and the onset of linear instabilities in probe particle motion.
- Demonstrated that probe particle dynamics are sensitive to the degree of oddity and activity of the viscoelastic medium.
Conclusions:
- The activity of odd viscoelastic fluids can indeed lead to linear instabilities in immersed probe particles.
- Understanding these dynamics is crucial for probing the properties of complex fluids and exploring broken symmetries.
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