Odd viscoelastic materials are constrained by fewer symmetries than their even counterparts. The breaking of these symmetries allows these materials to exhibit different features, which have attracted considerable attention in recent years. Immersing a bead in such complex fluids allows for probing their physical properties, highlighting signatures of their oddity and exploring the consequences of these broken symmetries. We present the conditions under which the activity of an odd viscoelastic fluid can give rise to linear instabilities in the motion of the probe particle, and we unveil how the features of the probe particle dynamics depend on the oddity and activity of the viscoelastic medium in which it is immersed.

中文翻译：

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探测奇数活性粘弹性流体中的颗粒：活性和耗散如何决定线性稳定性

奇数粘弹性材料比偶数粘弹性材料受到更少的对称性约束。这些对称性的打破使得这些材料表现出不同的特性，近年来引起了相当大的关注。将珠子浸入如此复杂的液体中可以探测它们的物理特性，突出它们的奇怪特征并探索这些对称性破缺的后果。我们提出了奇数粘弹性流体的活动可以在探针粒子的运动中引起线性不稳定性的条件，并且我们揭示了探针粒子动力学的特征如何取决于粘弹性介质的奇数和活动性，其中它被浸没了。